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A member asked:
Is it possible for breast cancer to show up on a blood test?
A doctor has provided 1 answer
No: As of today, all blood tests looking for tumor markers, that is molecules representing the tumor, that are shed into the blood stream are carbohydrate in origin. Ie. Ca 125, ca 19.9 are markers with the ca prefix represent carbohydrate antibody, such markers are seen in many tumors and many cases of organ inflammation. As such they can only be used for monitoring.
Answered 4/30/2014
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