| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Malignant neoplasm of sacral vertebra | Is a | Neoplasm of sacrum | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Malignant neoplasm of pelvic bones, sacrum and coccyx | true | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Finding site | Structure of innominate bone and/or sacrum and/or coccyx | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of sacral vertebra | Finding site | Anatomical structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of sacral vertebra | Associated morphology | Neoplasm | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of sacral vertebra | Finding site | Sacral vertebra structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of sacral vertebra | Pathological process | Neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Pathological process | Malignant neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Neoplasm of vertebral column | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Neoplasm of back | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Disorder of sacrum | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Finding site | Bone structure of sacrum | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of sacral vertebra | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of sacral vertebra | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of sacral vertebra | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of sacral vertebra | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Malignant neoplasm of sacral vertebra | Finding site | Sacral vertebra structure | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of sacral vertebra | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of sacral vertebra | Is a | Neoplasm of sacrum | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Neoplasm of vertebral column | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Sacral spine finding | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Finding of vertebra | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Neoplasm of vertebra | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Neoplasm of bone of sacrum | true | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Malignant neoplasm of vertebral column | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Is a | Malignant neoplasm of vertebra | true | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of sacral vertebra | Associated morphology | Malignant neoplasm | true | Inferred relationship | Existential restriction modifier | 1 |  |