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2. Prostate-specific antigen - Wikipedia

   en.wikipedia.org/wiki/Prostate-specific_antigen

   Prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3), P-30 antigen, is a glycoprotein enzyme encoded in humans by the KLK3 gene.PSA is a member of the kallikrein-related peptidase family and is secreted by the epithelial cells of the prostate gland in men and the paraurethral glands in women.

3. What Your PSA Test Says About Your Prostate - AOL

   www.aol.com/psa-test-says-prostate-110000368.html

   What Your PSA Test Results Mean. THE PSA IS a good initial “check engine light” for the prostate, says Garrett Pohlman, M.D., a urologist and host of The Prostate Health Podcast. But it can ...

4. Prostate cancer screening - Wikipedia

   en.wikipedia.org/wiki/Prostate_cancer_screening

   Prostate-specific antigen. Prostate-specific antigen (PSA) is secreted by the epithelial cells of the prostate gland and can be detected in a sample of blood. [14] PSA is present in small quantities in the serum of men with healthy prostates, but is often elevated in the presence of prostate cancer or other prostate disorders. [15]

5. 10 Warning Signs of Prostate Cancer, According to Doctors - AOL

   www.aol.com/lifestyle/10-warning-signs-prostate...

   The other is a PSA blood test, which measures the amount of a protein that’s produced by cancerous and noncancerous cells in the prostate. “Elevated PSA levels can be an indicator of prostate ...

6. Prostate cancer - Wikipedia

   en.wikipedia.org/wiki/Prostate_cancer

   Prostate cancer is the uncontrolled growth of cells in the prostate, a gland in the male reproductive system below the bladder.Abnormal growth of prostate tissue is usually detected through screening tests, typically blood tests that check for prostate-specific antigen (PSA) levels.

7. Tumor marker - Wikipedia

   en.wikipedia.org/wiki/Tumor_marker

   No screening test is wholly specific, and a high level of tumor marker can still be found in benign tumors. The only tumor marker currently used in screening is PSA (prostate-specific antigen). Diagnostics; Tumor markers alone can't be used for diagnostic purposes, due to lack of sensitivity and specificity. [5]