| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Metastatic malignant neoplasm to adenoid | Is a | False | Primary malignant neoplasm of posterior wall of nasopharynx | Inferred relationship | Existential restriction modifier | |
| Metastatic malignant neoplasm to posterior wall of nasopharynx | Is a | False | Primary malignant neoplasm of posterior wall of nasopharynx | Inferred relationship | Existential restriction modifier | |
| Malignant tumor of adenoid | Is a | False | Primary malignant neoplasm of posterior wall of nasopharynx | Inferred relationship | Existential restriction modifier | |
| Primary malignant neoplasm of adenoid | Is a | True | Primary malignant neoplasm of posterior wall of nasopharynx | Inferred relationship | Existential restriction modifier | |
| Primary squamous cell carcinoma of posterior wall of nasopharynx | Is a | True | Primary malignant neoplasm of posterior wall of nasopharynx | Inferred relationship | Existential restriction modifier |
This concept is not in any reference sets