CA-125

Definition / meaning of CA-125

A substance that may be found in high amounts in the blood of patients with certain types of cancer, including ovarian cancer. CA-125 levels may also help monitor how well cancer treatments are working or if cancer has come back. Also called cancer antigen 125.

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Find More About 'CA-125'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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