Distribution and case-fatality ratios by cell-type for ovarian carcinomas: A 22-year series of 562 patients with uniform current histological classification

Current diagnostic criteria confirm that high grade serous carcinoma and carcinosarcoma account for the vast majority (85%) of ovarian cancer deaths. Cell type designation is highly reproducible among gynecologic pathologists. Type II tumors are rarely stage I (< 2%) when comprehensively staged by a gynecologic oncologist.