[Benign and malignant Brenner tumor of the ovary: a clinicopathological and immunohistochemical study]

Z N Peng
Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology 1992, 21 (6): 333-5
The clinicopathological and immunohistochemical features of 7 cases of benign and malignant Brenner tumor of the ovary, including 5 benign and 2 malignant tumors are described. Microscopically, all of the benign cases were composed of both epithelial nest and fibrous stroma. Two cases of the malignant Brenner tumor showed that the histologic features resembled the structure of non-keratinized squamous carcinoma or transitional cell carcinoma. Immunohistochemistry showed that tumor cells of the epithelial nest were keratin and EMA positive in 7 cases; CEA-positive in 5 cases; and negative in 2 cases of benign Brenner tumor. The results indicated that Brenner tumor is an epithelial neoplasm in nature. The diagnostic criteria and histogenetic origin are discussed.

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