Ovarian tumours are commonly arise from

(Surface epithelium) (397-S) (333-S14th)Ovarian cancers* Epithelial ovarian cancers accounts for 80 to 90% of ovarian cancers* Non-epithelial cancers account for 10 to 20%These include malignancies of:I) Germ cell originII) Sex cord stromal cell originIII) Metastatic cancersIV) Rare malignancies like lipoid cell tumours sarcomas