Prostate specific Ag

Prostate-specific antigen (PSA) is a protein produced by the prostate gland. This test measures PSA levels in peritoneal fluid (fluid in the abdomen), which may be performed in advanced prostate cancer cases to assess disease spread or progression. Elevated PSA in peritoneal fluid can indicate metastatic disease. PSA testing is part of prostate cancer screening and monitoring, particularly in men with a family history or those experiencing urinary symptoms. Results should be interpreted alongside other clinical findings.