an enzyme or biomarker secreted by prostate cells associated with a higher probability of disease outside the prostate when levels are 3.0 or higher; PAP elevations suggest that the disease is not OCD (organ confined disease)

(prah-STAH-tik A-sid FOS-fuh-tase) Enzyme produced by the prostate that may be found in increased amounts in men who have prostate cancer

An enzyme produced by the prostate that is elevated in many patients when prostate cancer has spread beyond the prostate. The PAP blood test has largely been replaced by the PSA test.