A case of primary lymphoma of the prostate presented with symptoms of lower urinary tract obstruction

Malignant lymphomas involving the prostate, whether presenting as primary extranodal lymphoma or as secondary spread to the prostate from other site, are rare. Most are secondary, so primary lymphoma of the prostate is extremely rare. We report a case of primary prostatic non-Hodgkin's lymphoma who presented with symptoms of lower urinary tract obstruction and constipation. The patient underwent cyclophosphamide, vincristine, prednisone combination chemotheraphy for 3 cycles and then now under involved-field radiotheraphy.