This is a blood test often used for diagnosing ovarian cancer. However, because it is a “tumor marker” it can detect other abnormal tumor cells in the body. False positive results are common. We routinely see abnormal elevations when patients are diagnosed with Fibroid tumors, adenomyosis and endometriosis. If you get a result outside the normal range, this does not mean you have cancer…ask your Doctor about the outcome of other diagnostic tests performed.