Bilateral Malignant Brenner Tumour

Bilateral malignant Brenner tumour of ovary is extremely rate. A case of malignant Brenner tumour involving both the ovaries with mctastasis to mesentery in a 48 year femalc is presented. Grossly ovarian masses were firm with soft areas, encapsulated and having bosselated external surfaces. Cut sections showed yellowish white surface with peripheral cysts (in both tumours). Microscopy revealed transitional cell carcinoma with squamoid differentiation at places. Metastatic deposits were found in the mesentery. Endometrium showed cystic glandular hyperplasia.