Small cell carcinoma of the ovary is rare and occurs primarily in young women. It has a very poorprognosis-the results of chemotheraphy and rediotherapy have been generally disappointing and early recurrence ordistant metastasis is common. Metastasis to the breast is very rare; such tomors account for about 1% of totalbreast malignancies. We describe the case of a 37-year-old-woman with muiltiple metastases to both breasts fromleft ovarian small cell carcinoma : the radiologic findings are also included. On pelvic ultrasonography and MRimaging, small cell carcinoma of the ovary was seen as a lobulationg mass lesion admixed with cystic and solidcomponents, and present in the pelvic cavity. Two months later, mammography and ultrasonography revealedrelatively well marginated multiple solid mass lesions in both breasts.