| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Is a | Disorder of head | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Is a | Malignant tumor of ear, nose and throat | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Pathological process | Neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Finding site | Head structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Pathological process | Malignant neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Finding site | Ill-defined topographic site | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Neoplasm | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Finding site | Anatomical structure | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Is a | Neoplasm of head | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Finding site | Structure of ear, nose, and/or throat | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Is a | Malignant tumor of middle ear | true | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Is a | Malignant tumor of nasal cavity | true | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Is a | Malignant tumor of nasal sinuses | true | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Finding site | Middle ear structure | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Finding site | Nasal cavity structure | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Finding site | Structure of accessory sinus gland | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Associated morphology | Malignant neoplasm | true | Inferred relationship | Existential restriction modifier | 3 |  |