<prompt> Most common malignancy of Ovary is:Granulosa cell tumourDermoid cystMucinous cystadenomaSerous cystadenoma  <response>: Ovarian tumors Epithelial cell tumor Germ cell tumor Sex cord tumor MC tumor 90 5-8 3 Types: Serous 75-80 MC Endometrial 8-10 Mucinous 5 Clear cell Brenner tumors Teratoma Yolk sac tumor Endodermal Sinus tumor Choriocarcinoma Dysgerminoma Dermoid cyst A. Estrogen Secreting tumors Granulosa cell Fibroma Thecoma B. Androgen secreting Tumor Seoli cell tumor Leydig cell Hilus cell tumor 