biochemical recurrence

Definition / meaning of biochemical recurrence

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

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Source(s):

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

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