| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Is a | Malignant neoplasm of lower lobe, bronchus or lung | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Is a | Primary malignant neoplasm | false | Inferred relationship | Existential restriction modifier |  |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Finding site | Lower respiratory tract structure | false | Inferred relationship | Existential restriction modifier | 8 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Finding site | Mediastinal structure | false | Inferred relationship | Existential restriction modifier | 8 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Associated morphology | Neoplasm | false | Inferred relationship | Existential restriction modifier | 8 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Associated morphology | Malignant neoplasm, primary | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Is a | Primary malignant neoplasm of lung | true | Inferred relationship | Existential restriction modifier |  |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Associated morphology | Malignant neoplasm, primary | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Finding site | Lung structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Is a | Malignant neoplasm of lower lobe of lung | true | Inferred relationship | Existential restriction modifier |  |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Finding site | Structure of lower lobe of lung | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Associated morphology | Malignant neoplasm | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Pathological process | Malignant proliferation of primary neoplasm | true | Inferred relationship | Existential restriction modifier | 1 |  |