口腔内にみられたリンパ上皮性嚢胞の2例

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Lymphoepithelial cyst generally develops in the lateral cervica larea, but the same cyst sometimes develops in the oral cavity. It is characterized histopathologically as lymphoid tissue below the lining of the stratified squamous epithelium of the cyst. As weexperienced two cases of lymphoepithelial cyst in the oral cavity. We histopathologically examined serial sections of the two specimens and discussed the histogenesis of the lesion.<BR>Case 1. The patient, a 29-year-old woman, was presented to our department on April 27, 1988, for evaluation of a small tumor on the right floor of the mouth. She found it herself by mirror two days before. Under to cal anesthesia, the lesion was totally excised. Histopathological findings revealed a cyst with parakeratinizing stratified squamous epithelium and lymphoid tissue with follicles.<BR>Case 2. The same cyst was found on the right side of the ventral surface of the tongue in a 51-year-old woman presented to our department on September 20, 1985. She found it herself yesterday by mirror that because of unpleasant feeling in mouth. It was the same histopathological findings as in case 1.
社団法人日本口腔外科学会の論文