TY - EJOU AU - Patel, Raunak D. AU - Walker, Colton AU - Canter, Daniel J. TI - Acase report of a renal diffuse B-cell lymphoma T2 - Canadian Journal of Urology PY - 2017 VL - 24 IS - 1 SN - 1488-5581 AB - Diffuse large B-cell lymphomas (DLBCL) are the most common lymphomas worldwide. They also appear to be the most common primary retroperitoneal lymphomas, but this presentation is relatively uncommon in the literature. Retroperitoneal masses, including lymphomas, often present with nonspecifc symptoms and laboratory values, necessitating radiographic assessment and consideration of mass biopsy prior to the initiation of treatment. Here we present a case of a primary retroperitoneal DLBCL as well as a review of the clinical presentation, imaging fndings, and differential diagnosis of such tumors. KW - retroperitoneal mass KW - renal mass KW - lymphoma KW - computed tomography KW - biopsy DO -