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Dictionary of Cancer Terms

View in Spanish: Prueba del antígeno prostático específico

Prostate-specific antigen test (PROS-tayt-speh-SIH-fik AN-tih-jen )
A blood test that measures the level of prostate-specific antigen (PSA), a substance produced by the prostate and some other tissues in the body. Increased levels of PSA may be a sign of prostate cancer.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.