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What is Ovarian tumors commonly arise from: and explain in detail?
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.