抄録
Carcinoma in pleomorphic adenoma is a relatively rare lesion, and a case of which is reported in this article.
A 52-year-old man had become aware of painless swelling in the right parotid gland about 15 years before. Because the swelling became larger, the patient was admitted to Tokyo Dental College Ichikawa Hospital. The Surgically removed tumor was examined using a light microscope and immunohistochemistry. Light microscopically, the tumor revealed that atypical epithelial cells infiltratively proliferated in the fibrous connective tissue, part of which had mucous degeneration. The immunohistochemical study suggested that EMA was useful as an diagnosis of carcinoma in pleomorphic adenoma.
