MedlinePlus Medical Encyclopedia: PSA blood test

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PSA blood test

Prostate-specific antigen (PSA) is a glycoprotein in the cytoplasm of prostatic epithelial cells. It can be detected in the blood of all adult men. The PSA level is increased in men with prostate cancer but can also be increased somewhat in other disorders of the prostate.

Update Date: 9/11/2006

Updated by: Rita Nanda, M.D., Department of Medicine, Section of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL. Review provided by VeriMed Healthcare Network.

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