malignant tumor of nasopharynx (MONDO_0021315, a Monarch Disease Ontology identifier) is a cancer that involves the nasopharynx. Also known as: cancer of nasopharynx, malignant nasopharyngeal neoplasm, malignant nasopharyngeal tumor, malignant nasopharyngeal tumour, malignant nasopharynx neoplasm, malignant neoplasm of nasopharynx, malignant neoplasm of the nasopharynx, malignant tumor of the nasopharynx.