Abstract

Abstract
It is a common occurrence of bilateral renal involvement in high grade lymphomas. Primary renal lymphoma is a
rare event, it is a debated issue because of absence lymphoid tissue in normal kidney. Secondary renal involvement in
systemic lymphomas is generally present as multiple masses, but they may present as a solitary nodule.
This case was a 70-years old woman, and she had complaints of pain in right flank and abdomen for two months.
In laboratory examination in urology outpatient clinics she had prolonged bleeding time, high coagulation factors, low
thrombocytes, and no atypical cells in peripheric blood smear. In abdominopelvic computerized tomography it was
detected a mass in right kidney, and she underwent a right nephrectomy. Our case presented as a renal tumor, and it
was diagnosed as non-Hodgkin’s lymphoma, diffuse large B cell type.
Because of rarity of primary renal lymphoma and its debated origin we presented this case.