上顎歯槽部に発生した基底細胞腺腫の1例

• Published in: 日本口腔外科学会雑誌 Vol. 55; no. 7; pp. 369 - 372
• Main Authors: 藤田, 温志, 戸塚, 靖則, 進藤, 正信, 小野, 貢伸
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.07.2009
• Subjects: 上顎歯槽部; 基底細胞腺腫; 小唾液腺
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.55.369

Basal cell adenoma is a benign salivary gland tumor that most frequently occurs in the parotid gland.We report a case of basal cell adenoma of the maxillary alveolus in a man aged 62 years. Histopathological examination revealed that tumor was encapsulated with fibrous tissue and had a basal-cell-like appearance with tubulotrabecular growth. Immunohistochemically, the inner tumor cells of the tubulo-ductal structures showed positive immunoreactivity for CK7, and the outer tumor cells showed positive immunoreactivity for alpha SMA and vimentin. Most of the tumor cells were positive for p63. In addition, the MIB-1（Ki-67）labeling index was extremely low. A basal cell adenoma was thus diagnosed.