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A member asked:
What is the blood test ca 19-9 used as?
A doctor has provided 1 answer
A "Tumor marker": Ca 19-9 is elevated in ovarian, pancreatic and biliary cancers. But the levels are elevated in non-malignant disease as well, so it is not a good test for detecting cancers. It may be used to monitor the response of a tumor to treatment, if it was elevated prior to treatment.
Answered 8/17/2013
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