| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Is a | Benign neoplasm of retroperitoneum | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Pathological process | Benign neoplastic process | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Finding site | Peritoneum | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Finding site | Retroperitoneal compartment structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Finding site | Structure of retroperitoneal region, excluding major organs | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Finding site | Entire body wall | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Pathological process | Neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Is a | Neoplasm of connective tissues | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Finding site | Connective tissue structure | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Is a | Disorder of connective tissue | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Is a | Benign neoplasm of soft tissue | false | Inferred relationship | Existential restriction modifier |  |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Finding site | Structure of soft tissue | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Benign neoplasm of connective and soft tissue of retroperitoneum | Associated morphology | Neoplasm, benign | false | Inferred relationship | Existential restriction modifier | 2 |  |