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Originally Posted by Isaac-Saxxon
Just what is CA-125 and how does it work ??
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CA-125 is a blood test that measures an antigen that is produced by this type of cancer. If the level is high in a woman, then ovarian cancer is suspected. It is not used as a screening tool because it can have false positives and such. However when the woman has a known ovarian cancer, the oncologist will watch this to help in her staging and to watch the progression of her disease. It's much like a PSA in a man.