| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Secondary squamous cell carcinoma of liver | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Secondary squamous cell carcinoma of lung | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Secondary squamous cell carcinoma of skin | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Secondary squamous cell carcinoma of left kidney | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Bilateral secondary squamous cell carcinoma of lungs | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Bilateral secondary squamous cell carcinoma of lungs | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 2 | 
| Secondary squamous cell carcinoma of left lung | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Secondary squamous cell carcinoma of right lung | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Secondary squamous cell carcinoma of right kidney | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Secondary squamous cell carcinoma of bone | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma of abdominal lymph node | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma of lymph node of upper limb | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma of lymph nodes of head and neck | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma of lymph nodes of multiple sites | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma of lymph node of lower limb | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma of pelvic lymph node | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma of thoracic lymph node | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to bronchus | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to bronchus of left upper lobe | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to bronchus of right upper lobe | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to bronchus of left lower lobe | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to bronchus of right lower lobe | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to bronchus of right middle lobe | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to prostate | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to epididymis and spermatic cord | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic squamous cell carcinoma to epididymis and spermatic cord | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 2 | 
| Metastatic squamous cell carcinoma to liver and intrahepatic biliary tract | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| Metastatic clear cell squamous cell carcinoma | Is a | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some |  | 
| Metastatic acantholytic squamous cell carcinoma | Is a | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some |  | 
| Metastatic verrucous carcinoma | Is a | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some |  | 
| Metastatic squamous cell carcinoma | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 | 
| [M]Squamous cell carcinoma, metastatic NOS | Is a | False | Squamous cell carcinoma, metastatic | Inferred relationship | Some |  | 
| Metastasis to lymph node from squamous cell carcinoma | Associated morphology | True | Squamous cell carcinoma, metastatic | Inferred relationship | Some | 1 |