ABSTRACT
Prostate lymphoma is a rare condition, it accounts for 0.09% of all prostate malignancies. As other prostate diseases, prostate lymphoma occurs in the same age group and it is difficult to distinguish clinically. We report a case of 63 year-old male with acute urinary retention twice and normal serum level of prostate specific antigen. We performed transurethral resection (TUR). In the microscopic examination of the TUR material a diffuse lymphocytic infiltration which were strongly positive for CD20 and CD5 and negative for CD3. (Bulletin of Urooncology 2014;13:182-183)