MONDO_0006998 (tonsil cancer) is a primary or metastatic malignant neoplasm that affects the tonsil. Also known as: malignant neoplasm of faucial tonsil, malignant neoplasm of palatine tonsil, malignant neoplasm of the tonsil, malignant neoplasm of tonsil, malignant neoplasm of tonsil, faucial, malignant tonsil neoplasm, malignant tonsil tumor, malignant tonsil tumour.