Results: In 41 cases of prostatic adenocarcinoma with PSA < or = 10 ng per milliliter, mean-age is 70.5 ± 9.7; the lowest serum PSA level is 0.09 ng per milliliter; the most common Gleason scores range from 5 to 7, there are 12 cases with Gleason scores ranging from 8 to 10; Gleason scores and the percentage of samples of prostate adenocarcinoma in prostate needle biopsies specimens in group with serum PSA > 10 ng per milliliter is higher than group with serum PSA ≤ 10 ng per milliliter.