当初えら原性嚢胞が疑われた舌根原発へん平上皮癌の頚部リンパ節転移―嚢胞性頚部転移癌におけるへん桃精査の重要性―

Abstract

We report a case of lingual tonsil carcinoma diagnosed first as a branchiogenic cyst. Histopathological findings showed the possibility of a malignant tumor because there was proliferation of the papillary epithelium of the cyst wall. Blind biopsy of the lingual and palatine tonsil was done and the histological findings revealed a cystic metastatic lymph node from a squamous cell carcinoma (SCC) of the lingual tonsil. The diagnosis of the primary unknown cystic metastatic cervieal SCC requires a thorough examination of the palatine or lingual tonsil when there is no evidence of any vestigial remnant of branchiogenic organ.