CA125 (Female)
This test measures the amount of a protein called CA-125 (cancer antigen 125) in the blood. CA-125 levels are high in many women with ovarian cancer. The ovaries are a pair of female reproductive glands that store ova (eggs) and make female hormones. Ovarian cancer happens when there is uncontrolled cell growth in a woman's ovary.
Why a doctor may order this
To monitor ovarian cancer treatment response and recurrence; also elevated in some benign conditions.
Why you may need this
Ovarian cancer monitoring or investigation of pelvic masses — not routine screening.
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