Definition of prostate-specific antigen - NCI Dictionary of Cancer Terms

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prostate-specific antigen

PSA. A substance produced by the prostate that may be found in an increased amount in the blood of men who have prostate cancer, benign prostatic hyperplasia, or infection or inflammation of the prostate. Also called PSA.

Previous Definitions:	prostaglandin-endoperoxide synthase 2, ProstaScint, ProstaScint scan, prostate, prostate cancer
Next Definitions:	prostate-specific antigen test, prostatectomy, prostatic acid phosphatase, prostatic intraepithelial neoplasia, prostatitis