COLLISION TUMOUR OF OVARY – IMAGING FEATURES OF TWO RARE CASES

Collision tumors of the ovary are rare lesions characterized by co – existence of two distinct histologies within the same organ. Here, we report two cases of collision tumors of the ovary. In the rst case, the tumor was composed of unmixed serous cystadenoma and broma in the ovary of a pregnant lady. The second case, a combination of sero- mucinous cystadenoma and mature cystic teratoma was seen in the same ovary of a postmenopausal woman. We discuss these cases highlighting the imaging features of the individual component tumors.