“…215,221 A cystic metastasis of a poorly differentiated, nonkeratinizing carcinoma recapitulating the tonsillar crypt epithelium most likely originates in the lingual or faucial tonsil. 37,205 A subset of these crypt carcinomas, however, express CK7, especially those with basaloid features, and often are located at the base of the tongue. 222 Cystic metastases from the tonsils are often unicystic, whereas those from the base of the tongue are more often multicystic.…”