What is the ca-125 test?

CA-125. Cancer antigen 125 (ca-125) is a protein found on the surface of many ovarian cancer cells. It also can be found in other cancers and in small amounts in normal tissue. A ca-125 test measures the amount of this protein in the blood and can be used as a tumor marker.
Ovarian cancer . This is a substance produced by a variety of cancer cells, especially those of ovarian cancer. As with all tumor markers, they are useful in monitoring the progression of the respective cancers or their response to treatment.

Related Questions

What is the ca-125 test for ovarian cancer?

Measures a protein. The ca-125 test is a blood test that detects a protein in the blood that is produced by malignant ovarian cells. It is used to help determine if an ovarian cancer patient has had a relapse, or to help differentiate a cyst found by sonogram or ct. The most important point: it should never be used as a yearly screening test, and should not be requested by patients as a screening test. Read more...