oropharynx cancer (MONDO_0004608) is a primary or metastatic malignant neoplasm that affects the oropharynx. Also known as: cancer of oropharynx, malignant neoplasm of junctional region of oropharynx, malignant neoplasm of lateral wall of oropharynx, malignant neoplasm of oropharynx, malignant neoplasm of posterior wall of oropharynx, malignant neoplasm of the oropharynx, malignant oropharyngeal neoplasm, malignant oropharyngeal tumor.