Background: Intravascular large B-cell lymphoma is a rare, extranodal characterised by intravascular growth of malignant mature population, primarily affecting capillaries. Pre-mortem diagnosis can be challenging as patients often present with non-specific clinical findings including fever unknown origin, decreased general condition and neurological abnormalities. Radiological may or falsely ne...

a male patient with acute renal failure (arf) due to large b-cell non-hodgkin lymphoma infiltration of kidney is presented. the diagnosis was suspected because of coincidence of arf and tumor lysis syndrome non-responsive to conservative renal therapies. a renal biopsy confirmed diagnosis and appropriate chemotherapy led to complete improvement of renal function.