A member asked:

What is the ca 15-3 test? what kind of cancer?

A doctor has provided 1 answer

Breast cancer: Ca 15-3 levels can be used to monitor the course of breast cancer. If a patient with breast cancer has elevated ca 15-3 levels the blood levels of the marker are a measure of the amount of tumor and can be followed to judge the response to treatment. It is not useful as a diagnostic test.

Answered 6/23/2012

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