| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Structure of lymph node of head | Is a | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier |  | 
| Cervical lymph node structure | Is a | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier |  | 
| Malignant histiocytosis of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Letterer-Siwe disease of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier |  | 
| Mast cell malignancy of lymph nodes of head and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Metastasis to head and neck lymph node | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Reticulosarcoma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Lymphosarcoma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Burkitt's lymphoma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's paragranuloma of lymph nodes of head, face, and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 2 | 
| Hodgkin's granuloma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's sarcoma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, lymphocytic-histiocytic predominance of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, nodular sclerosis of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, mixed cellularity of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, lymphocytic depletion of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Nodular lymphoma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Mycosis fungoides of the lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Sézary's disease of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Leukemic reticuloendotheliosis of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Acute lymphadenitis of face, head and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of superficial parotid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of mastoid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of superficial cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of occipital lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of deep parotid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of submandibular lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of facial lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of submental lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of anterior cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of deep cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck NOS | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Mast cell malignancy of lymph nodes of head and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Burkitt's tumor of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 2 | 
| Letterer-Siwe disease of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant histiocytosis of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant lymphoma of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's paragranuloma of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Mycosis fungoides of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Lymphadenopathy of head AND/OR neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, lymphocytic depletion of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of superficial cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's sarcoma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of superficial parotid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of mastoid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, mixed cellularity of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Reticulosarcoma of lymph nodes of head, face and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, lymphocytic-histiocytic predominance of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, nodular sclerosis of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Metastasis to head and neck lymph node | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Lymphosarcoma of lymph nodes of head, face and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, lymphocytic depletion of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of occipital lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of facial lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant lymphoma of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of anterior cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Burkitt's lymphoma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's granuloma of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Mast cell malignancy of lymph nodes of head and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of submental lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Leukemic reticuloendotheliosis of lymph nodes of head, face and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Nodular lymphoma of lymph nodes of head, face and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Acute lymphadenitis of face, head and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Letterer-Siwe disease of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's disease, lymphocytic depletion of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of submandibular lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of deep cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Burkitt's tumor of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Hodgkin's paragranuloma of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck NOS | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of deep parotid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Entire lymph node of head and neck | Is a | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier |  | 
| Sézary's disease of lymph nodes of head, face AND/OR neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 2 | 
| Mixed cell type lymphosarcoma of lymph nodes of head, face, and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Metastatic carcinoma to lymph node of head and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Metastatic adenocarcinoma to lymph node of head and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Metastatic squamous cell carcinoma to lymph nodes of head and neck | Finding site | True | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Head and neck lymphadenopathy | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier |  | 
| Secondary and unspecified malignant neoplasm of mastoid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of submental lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of occipital lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of deep parotid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of submandibular lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of facial lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of anterior cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of deep cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck NOS | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of superficial parotid lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 | 
| Secondary and unspecified malignant neoplasm of superficial cervical lymph nodes | Finding site | False | Structure of lymph node of head and neck | Inferred relationship | Existential restriction modifier | 1 |