Gilda Radner. Coretta Scott King. Kathy Bates. Olympic gold medal-winning gymnast Shannon Miller. Each was diagnosed with ovarian cancer, which ranks fifth in cancer deaths among women ages 35-74. Women don’t undergo routine screening for ovarian cancer because there is no simple and reliable screening test, and symptoms are subtle and common among other conditions. That’s why ovarian cancer is often diagnosed in later stages rather than early on when treatment is most effective. Although it accounts for only 3 percent of all cancers in women, ovarian cancer causes more deaths than any other cancer of the female reproductive system.