| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Is a | Malignant mast cell tumor | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | Mast cell sarcoma | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Pathological process | Malignant neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | Lymphoid system structure | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | Hematopoietic system structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | Mast cell sarcoma | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Is a | Mast cell malignancy of lymph nodes of head and neck | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | Leukocyte | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | Structure of lymph node of head and neck | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | Mast cell sarcoma | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | White blood cell abnormality | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | Hematopoietic system structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | Mast cell sarcoma | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | Lymphoid system structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | Malignant hematopoietic neoplasm | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Has definitional manifestation | Immune system finding | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Has definitional manifestation | White blood cell finding | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Is a | Sarcoma of head and neck | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | Mast cell sarcoma | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | Structure of lymph node of head and neck | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Has definitional manifestation | Immune system finding | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Pathological process | Abnormal immune process | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Finding site | Mast cell | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Malignant mast cell tumor of lymph nodes of head, face AND/OR neck | Associated morphology | Malignant mast cell neoplasm | false | Inferred relationship | Existential restriction modifier | 3 |  |