Primary lymphoma of the prostate: a rare cause of urinary obstruction.

Primary lymphoma of the prostate is rare. It represents 0.09% of prostate neoplasias. The authors report the case of a 42-year old patient presenting urinary obstruction and renal failure due to primary lymphoma of the prostate. We discuss the clinical manifestations of this disease, emphasizing that systemic chemotherapy represents the initial and preferential therapeutic method.