title: Bilateral solid renal masses in a young man.
abstract: Bilateral solid renal masses presenting in a young patient in the absence of systemic manifestations or genetic abnormalities, such as Von Hippel-Lindau's disease, are difficult diagnostic challenges. Primary renal lymphomas are exceedingly rare. More commonly, renal involvements are caused by lymphoma in the retroperitoneal area. It is important for a urologist to be aware of this diagnostic possibility, since unnecessary removal of a kidney and extensive surgery may be avoided, and because appropriate staging can be performed at exploration.
mesh_terms: D000328:Adult; D001402:B-Lymphocytes; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000473:pathology*; D008223:Lymphoma / Q000175:diagnosis / Q000473:pathology*; D008297:Male