Dictionary of Cancer Terms
View in Spanish: Antígeno prostático específico
Prostate-specific antigen (PROS-tayt-speh-SIH-fik AN-tih-jen)
A protein made by the prostate gland and found in the blood. Prostate-specific antigen blood levels may be higher than normal in men who have prostate cancer, benign prostatic hyperplasia (BPH), or infection or inflammation of the prostate gland. Also called PSA.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.