CA 19-9 assay

Definition / meaning of CA 19-9 assay

A test that measures the level of CA 19-9 in the blood. CA 19-9 is a tumor marker released into the bloodstream from both cancer cells and normal cells. Higher than normal amounts of CA 19-9 in the blood can be a sign of gallbladder or pancreatic cancer or other conditions.

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Find More About 'CA 19-9 assay'

Source(s):

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

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