A Rare Case of Collision Tumour of Ovary.

Collision tumor represent a coexistence of two different tumors in the same organs but histologically distinct tumor without histologic admixture. collision tumor involving ovaries are rare. We report a case of ovarian tumor with rare combination of benign mature cystic teratoma with mucinous cystadenoma in 41 year old female patient. Only a few cases with this combination have been reported in the literature.