Cancer Antigen 19-9 (CA 19-9)

Cancer Antigen 19-9 (CA 19-9)

Cancer Antigen 19-9 (CA 19-9)

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Diagnostic Blood Test:

  • Cancer Antigen 19-9 (CA 19-9)

Also known as Carbohydrate Antigen 19-9

This test measures the amount of a protein called CA 19-9 (cancer antigen 19-9), a tumor marker, in the blood. Tumor markers are substances made by cancer cells or by normal cells in response to cancer in the body.
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