CA19-9 (002261)
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CA19-9 (002261)

LabCorp

Cancer antigen 19-9 (CA 19-9) is a protein that exists on the surface of certain cancer cells. CA 19-9 does not cause cancer; rather, it is shed by the tumor cells and can be detected by laboratory tests in blood and sometimes other body fluids. This test measures the level of CA19-9.

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