- Etiology:
— epithelial cell tumors (70%) – serous / mucinous
— germ cell tumors (20%) – teratoma / dysgerminoma / endometrial sinus tumor / choriocarcinoma
— sex cord tumors (10%) – granulosa cell tumor / Sertoli-Leydig cell tumor
— others – metastases / lymphoma /leukemia - Complications: peritoneal metastasis
