| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Metastatic carcinoma to lip | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to retromolar area | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to anterior part of floor of mouth (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to lateral part of floor of mouth (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to soft palate (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to upper buccal sulcus (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to upper labial sulcus (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to lower labial sulcus (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to lower buccal sulcus (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to sublingual gland (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to submandibular gland (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to parotid gland (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to tongue (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to tonsil | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to lower gum (disorder) | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to upper gum | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic undifferentiated carcinoma to nasopharynx (disorder) | Is a | False | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  | 
| Metastatic carcinoma to nasopharynx | Is a | True | Metastatic carcinoma to lip, oral cavity and/or pharynx | Inferred relationship | Some |  |