[Differential diagnostic value of prostate-specific antigen in prostatic hyperplasia].

: Diagnostic value of prostate specific antigen (PSA) was studied in 163 patients with prostatic hyperplasia. As PSA is not a cancer-specific test, it is recommended to obtain biopsy in patients with prostatic hyperplasia and PSA > 4 ng/ml to diagnose prostatic cancer early. Methods raising PSA specificity for differential diagnosis of prostatic hyperplasia are not absolutely reliable.