Ovarian tumors commonly arise from:: (A) Stroma, (B) Surface epithelium, (C) Germinal epithelium, (D) Endoderm
Answer is B. Ans. is b, i.e. Surface epitheliumRef: Shaw 14th/ed, p334Epithelial tumors are derived from the ovarian surface epithelium. In general, epithelial tumors comprise 50-60% of all ovarian tumors but malignant epithelial tumors comprise 90% of all ovarian cancers.