Ovarian cancer forms when errors in normal ovarian cell growth occur. Endometriosis has been linked to ovarian cancers. Functional cysts and hemorrhagic ovarian cysts usually resolve spontaneously. There may an association of developing ovarian cancer and ovarian stimulation during infertility treatments. Letrozole may help to slow or stop growth of estrogen receptor positive ovarian cancer. She also was diagnosed with ovarian cancer. IUDs appear to decrease the risk of ovarian cancer. There are a number of prognostic factors in ovarian cancer. The B antigen links with increased risk of ovarian cancer. The menstrual cycle can be described by the ovarian or uterine cycle. The risks from developing specific types of ovarian cancer varies. Fibroids can be mistaken for ovarian neoplasms. Research into mitigating side effects of ovarian cancer treatment is also ongoing. Alteration of fertility and ovarian cysts can also occur in females. Channing was a survivor of ovarian cancer.