Abstract

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.

Key words: Benign Mature cystic teratoma, collision tumor, histopathology, mucinous cystadenoma.