PSA bounce

Definition / meaning of PSA bounce

A brief rise and then fall in the blood level of PSA (prostate-specific antigen) that occurs in some patients 1-3 years after receiving radiation treatment for prostate cancer. PSA bounce does not mean that the cancer has come back. It may be caused by the release of PSA from destroyed cancer cells or from normal prostate tissue exposed to the radiation treatment.

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Source(s):

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

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