| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Carcinoma of upper buccal sulcus | Is a | Malignant tumor of upper buccal sulcus | true | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Neoplasm of uncertain behavior | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Mouth region structure | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Structure of buccal mucosa | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Carcinoma of upper buccal sulcus | Pathological process | Malignant neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Malignant neoplasm, primary | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Carcinoma of upper buccal sulcus | Pathological process | Neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Finding site | Ill-defined topographic site | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Finding site | Digestive organ structure | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Finding site | Structure of vestibule of mouth | false | Inferred relationship | Existential restriction modifier | 5 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Structure of maxillary sulcus | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Carcinoma of upper buccal sulcus | Is a | Primary malignant neoplasm of maxilla | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Is a | Primary malignant neoplasm of soft tissues | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Carcinoma, no subtype | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Oral cavity structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Neoplasm | false | Inferred relationship | Existential restriction modifier | 5 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Neoplasm | false | Inferred relationship | Existential restriction modifier | 7 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Entire vestibulogingival sulcus | false | Inferred relationship | Existential restriction modifier | 5 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Entire upper buccal frenum | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Salivary gland structure | false | Inferred relationship | Existential restriction modifier | 7 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Lip structure | false | Inferred relationship | Existential restriction modifier | 7 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 4 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Oral cavity structure | false | Inferred relationship | Existential restriction modifier | 7 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Carcinoma of upper buccal sulcus | Is a | Primary malignant neoplasm of vestibule of mouth | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Is a | Primary malignant neoplasm of soft tissues of head | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Upper digestive tract structure | false | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Finding site | Structure of maxillary buccal sulcus | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Carcinoma of upper buccal sulcus | Is a | Carcinoma of lip, oral cavity and/or pharynx | true | Inferred relationship | Existential restriction modifier |  |  | 
| Carcinoma of upper buccal sulcus | Finding site | Structure of buccal mucosa | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Carcinoma, no subtype | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Carcinoma of upper buccal sulcus | Finding site | Structure of maxillary buccal sulcus | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Carcinoma of upper buccal sulcus | Associated morphology | Carcinoma | true | Inferred relationship | Existential restriction modifier | 1 |  |