noun[mass noun] Medicine
An antigenic enzyme released in the prostate and found in abnormally high concentrations in the blood of men with prostate cancer.
- Men middle-aged and older routinely get blood tests for prostate-specific antigen, or PSA, to screen for prostate cancer.
- The treatment also increases blood concentrations of prostate-specific antigen, or PSA, a marker associated with prostate cancer and prostate enlargement.
- In light of the urinary symptoms, he then had his blood tested for prostate-specific antigen, a protein elevated in prostate cancer.
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