245301007: Posterior external iliac lymph node group (body structure)

• SNOMED CT Concept\Body structure\Anatomical or acquired body structure (body structure)\Anatomical structure\...
• \Anatomical structure which has as its parts a heterogeneous collection of organs, organ parts, cells, cell parts or body part subdivisions that are adjacent to, or continuous with one another; does not constitute a cell part, cell, tissue, organ, or body part subdivision.\Structure of anatomical compartment (body structure)\Structure of body cavity and/or content\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\...
• \Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \An anatomical structure that consists of the maximal set of organ parts so connected to one another that together they constitute a self-contained unit of macroscopic anatomy, distinct both morphologically and functionally from other such units. Together with other organs, an organ constitutes an organ system or a body part. An organ is divisible into organ parts but not organs (examples: femur, biceps, liver, heart, aorta, sciatic nerve, ovary).\Lymphoid organ structure\Structure of lymph node (body structure)\...
• \Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\...
• \Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of subdivision of organ system (body structure)\Entire subdivision of organ system (body structure)\Structure of lymphoid system subdivision (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Mononuclear phagocyte system structure (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Mononuclear phagocyte system structure (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Mononuclear phagocyte system structure (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Mononuclear phagocyte system structure (body structure)\Structure of lymph node (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Structure of lymphoid system subdivision (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Lymphoid organ structure\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Lymphoid organ structure\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Lymphoid organ structure\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of hematological system (body structure)\Haematopoietic system structure\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Lymphoid organ structure\Structure of lymph node (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphoreticular system (body structure)\Lymphatic tissue\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphoreticular system (body structure)\Lymphatic tissue\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphoreticular system (body structure)\Lymphatic tissue\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphoreticular system (body structure)\Lymphatic tissue\Structure of lymph node (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Mononuclear phagocyte system structure (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Mononuclear phagocyte system structure (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Mononuclear phagocyte system structure (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Mononuclear phagocyte system structure (body structure)\Structure of lymph node (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Structure of lymphoid system subdivision (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Lymphoid organ structure\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Lymphoid organ structure\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Lymphoid organ structure\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of immune system (body structure)\Lymphoid system consists of lymph nodes, lymphatic vessels and organs that contain lymphoid tissue, e.g. thymus, spleen.\Lymphoid organ structure\Structure of lymph node (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphatic system (body structure)\Structure of region of lymphatic system (body structure)\Structure of lymphatic system of trunk (body structure)\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphatic system (body structure)\Structure of region of lymphatic system (body structure)\Structure of lymphatic system of trunk (body structure)\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphatic system (body structure)\Structure of region of lymphatic system (body structure)\Structure of lymphatic system of trunk (body structure)\Lymph node structure of trunk\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphatic system (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphatic system (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphatic system (body structure)\Structure of lymph node (body structure)\Regional lymph node structure\Lymph node structure of trunk\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body system structure\Structure of lymphatic system (body structure)\Structure of lymph node (body structure)\Lymph node group\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Structure of half of trunk lateral to midsagittal plane (body structure)\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Structure of half of trunk lateral to midsagittal plane (body structure)\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: superiorly the boundary of the false pelvis, which is an artificial plane from the symphysis pubis to the superior iliac crests (in front it is incomplete, presenting a wide interval between the anterior borders of the ilia); and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall and the entire perineum and external genitalia. Note, the entire bony pelvis is included within the pelvic segment (but is excluded from the abdomen proper segment of trunk); however the pelvic segment of trunk and the abdomen proper segment of trunk both include the volume of the false pelvis.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: superiorly the boundary of the false pelvis, which is an artificial plane from the symphysis pubis to the superior iliac crests (in front it is incomplete, presenting a wide interval between the anterior borders of the ilia); and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall and the entire perineum and external genitalia. Note, the entire bony pelvis is included within the pelvic segment (but is excluded from the abdomen proper segment of trunk); however the pelvic segment of trunk and the abdomen proper segment of trunk both include the volume of the false pelvis.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Neck, chest, abdomen, and pelvis\Neck and/or chest and/or abdomen structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Neck, chest, abdomen, and pelvis\Neck and/or chest and/or abdomen structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Neck, chest, abdomen, and pelvis\Neck and/or chest and/or abdomen structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Neck, chest, abdomen, and pelvis\Neck and/or chest and/or abdomen structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Neck, chest, abdomen, and pelvis\Neck and/or chest and/or abdomen structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Neck, chest, abdomen, and pelvis\Neck and/or chest and/or abdomen structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Neck, chest, abdomen, and pelvis\Neck and/or chest and/or abdomen structure (body structure)\Chest and/or abdomen structure (body structure)\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\Structure of pelvic cross-sectional segment of trunk and/or lower limb (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\Structure of pelvic cross-sectional segment of trunk and/or lower limb (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: superiorly the boundary of the false pelvis, which is an artificial plane from the symphysis pubis to the superior iliac crests (in front it is incomplete, presenting a wide interval between the anterior borders of the ilia); and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall and the entire perineum and external genitalia. Note, the entire bony pelvis is included within the pelvic segment (but is excluded from the abdomen proper segment of trunk); however the pelvic segment of trunk and the abdomen proper segment of trunk both include the volume of the false pelvis.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Lower body structure (body structure)\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: superiorly the boundary of the false pelvis, which is an artificial plane from the symphysis pubis to the superior iliac crests (in front it is incomplete, presenting a wide interval between the anterior borders of the ilia); and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall and the entire perineum and external genitalia. Note, the entire bony pelvis is included within the pelvic segment (but is excluded from the abdomen proper segment of trunk); however the pelvic segment of trunk and the abdomen proper segment of trunk both include the volume of the false pelvis.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of half of trunk lateral to midsagittal plane (body structure)\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\Structure of half of trunk lateral to midsagittal plane (body structure)\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of lateral half of abdomen lateral to midsagittal plane\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This is considered the most commonly used clinical variant of 'abdomen' and relates to the space and content within the abdominopelvic cavity plus the anterior and lateral abdominal wall. The volume is bounded by, but excludes: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; and posteriorly the posterior wall of the abdomen proper: The pelvic component consists of the cavity of the true pelvis, which is bounded by, but excludes, the pelvic wall. Anteriorly this volume is bounded and includes the anterior abdominal (including the lateral abdominal wall).\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the plane traversing the superior boundary of the iliac crest; and inferiorly it extends to the perineum and includes part but not necessarily the entire external genitalia. The segment includes the volume of the true and false pelvic cavities (and also part of the lower abdominal volume below the level of the virtual superior boundary). The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: superiorly the boundary of the false pelvis, which is an artificial plane from the symphysis pubis to the superior iliac crests (in front it is incomplete, presenting a wide interval between the anterior borders of the ilia); and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall and the entire perineum and external genitalia. Note, the entire bony pelvis is included within the pelvic segment (but is excluded from the abdomen proper segment of trunk); however the pelvic segment of trunk and the abdomen proper segment of trunk both include the volume of the false pelvis.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: superiorly the boundary of the false pelvis, which is an artificial plane from the symphysis pubis to the superior iliac crests (in front it is incomplete, presenting a wide interval between the anterior borders of the ilia); and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall and the entire perineum and external genitalia. Note, the entire bony pelvis is included within the pelvic segment (but is excluded from the abdomen proper segment of trunk); however the pelvic segment of trunk and the abdomen proper segment of trunk both include the volume of the false pelvis.\This structure, also termed the pelvic region, includes the wall, cavity and content of both the true and false pelvis; it consequently incorporates the entire bony pelvis; and inferiorly it is bounded and includes the pelvic diaphragm. The structure incorporates the complete pelvic wall; sacrococcygeal region (including the overlying skin and subcutaneous tissue); the contents of the false pelvic cavity; but in contrast to the 'pelvic segment of trunk' excludes the perineum, external genitalia.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of lymphatic system of trunk (body structure)\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of lymphatic system of trunk (body structure)\Lymph node structure of trunk\Structure of abdominal lymph node\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of lymphatic system of trunk (body structure)\Lymph node structure of trunk\Structure of abdominal lymph node\Structure of colic lymph node\Structure of ileocolic lymph node\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of body cavity and/or content\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Pelvic lymph node group\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group
• \Body region structure\Body part structure\Trunk structure\Structure of body cavity and/or content\This structure comprises the space and content within the boundaries of the abdominopelvic cavity but excludes the walls that define and enclose the space. Previously SNOMED CT used the word 'compartment' to describe structures comprising the cavity and content but FMA has used the same word to include cavity, content and wall. As a consequence, the preferred notation is intra-abdominopelvic structure as this more clearly excludes the 'wall' structures. The intra-abdominopelvic structure is bounded by, but excludes the following 'wall' structures: superiorly the thoracic diaphragm; inferiorly the pelvic diaphragm; anteriorly the anterior abdominal wall (including the lateral abdominal wall); and posteriorly the wall of the abdominal proper segment of trunk. The pelvic component consists of the cavity and content of the true pelvis, which is bounded by the pelvic wall. Note, the structures that form the boundaries are excluded.\Structure of cavity and/or content of pelvis (body structure)\Pelvic lymph node structure\Structure of iliac lymph node\Iliac lymph node group\External iliac lymph node group (body structure)\Posterior external iliac lymph node group

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core

Descriptions:

Id	Description	Lang	Type	Status	Case?	Module
366744010	Posterior external iliac lymph node group	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
635212018	Posterior external iliac lymph node group (body structure)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
1223570012	Posterior external iliac nodes	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
3317031000005112	posterior iliaca externa-lymfeknudegruppe	da	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	Danish module (core metadata concept)

Expanded Value Set

Reference Sets

Lateralizable body structure reference set (foundation metadata concept)

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