| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Primary malignant neoplasm of ear, nose AND/OR throat | Is a | Malignant tumor of ear, nose and throat | true | Inferred relationship | Existential restriction modifier |  |  | 
| Primary malignant neoplasm of ear, nose AND/OR throat | Is a | Primary malignant neoplasm | true | Inferred relationship | Existential restriction modifier |  |  | 
| Primary malignant neoplasm of ear, nose AND/OR throat | Associated morphology | Malignant neoplasm, primary | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of ear, nose AND/OR throat | Finding site | Structure of ear, nose, and/or throat | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of ear, nose AND/OR throat | Finding site | Structure of ear, nose, and/or throat | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of ear, nose AND/OR throat | Associated morphology | Malignant neoplasm, primary | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of ear, nose AND/OR throat | Associated morphology | Malignant neoplasm | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of ear, nose AND/OR throat | Pathological process | Malignant proliferation of primary neoplasm | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Primary malignant neoplasm of acoustic nerve | Is a | False | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of middle ear | Is a | True | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of skin of ear | Is a | True | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of upper respiratory tract | Is a | True | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Personal history of primary malignant neoplasm of ear, nose AND/OR throat | Associated finding | False | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier | 1 | 
| Basal cell carcinoma of external auditory canal | Is a | False | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Personal history of primary malignant neoplasm of ear, nose AND/OR throat | Associated finding | True | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier | 1 | 
| Primary basal cell carcinoma of left ear | Is a | False | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Primary squamous cell carcinoma of ear | Is a | True | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Ceruminous gland adenocarcinoma of skin | Is a | False | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of nose | Is a | True | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  | 
| Primary ceruminous gland adenocarcinoma of skin | Is a | True | Primary malignant neoplasm of ear, nose AND/OR throat | Inferred relationship | Existential restriction modifier |  |