PSA failure

Definition / meaning of PSA failure

A rise in the blood level of PSA (prostate-specific antigen) in prostate cancer patients after treatment with surgery or radiation. PSA failure may occur in patients who do not have symptoms. It may mean that the cancer has come back. Also called biochemical recurrence and biochemical relapse.

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Source(s):

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

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