舌下面にみられたリンパ上皮性嚢胞 (鰓嚢胞) の1例

概要

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Branchial cyst generally develops in the lateral cervical area, and it rarely develops in the oral cavity. In 1949 King et al. designated it as lymphoepithelial cyst from the pathohistological aspect. It is characterized by the presence of lymphatic tissue below the lining stratified squamous epithelium of the cyst.<BR>This paper presents a case of lymphoepithelial cyst in the inferior surface of the tongue in a 40-year-old woman. The tumor appeared as a round mass about 7 mm in diameter in the left side slightly posteriorly from the caruncula sublingualis. The mass was light yellow and well defined. Clinically, it was diagnosed as lipoma and resected under local anesthesia. Histopathological findings revealed that the cyst was lined by stratified squamous epithelium. Subepithelially, the lymphatic tissue with germinal center was observed. From these findings, it was diagnosed histopathologically as lymphoepithelial cyst. Her postoperative course was uneventful, and she is without recurrence after 20 months.
社団法人日本口腔外科学会の論文