prostate specific antigen

(Medicine) substance secreted by the epithelial cells in the prostate (often tested as an indicator for prostate cancer), PSA

Prostate specific antigen (PSA) is a protein produced by the cells of the prostate gland. PSA is present in small quantities in the serum of normal men, and is often elevated in the presence of prostate cancer and in other prostate disorders. A blood test to measure PSA is the most effective test currently available for the early detection of prostate cancer. Higher than normal levels of PSA are associated with both localized and metastatic prostate cancer (CaP).
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PSA A tumor marker associated with prostate cancer. Mentioned in: Tumor Markers [more]Prostate specific antigen - Community and Resources

Noun
1. a protein manufactured exclusively by the prostate gland; PSA is produced for the ejaculate where it liquifies the semen and allows sperm cells to swim freely; elevated levels of PSA in blood serum are associated with benign prostatic hyperplasia and prostate cancer
(synonym) PSA
(hypernym) protein

A protein that is elevated in some patients with prostate cancer.