Macroscopic hematuria as a presenting manifestation of oliguric acute tubular necrosis.

Macroscopic hematuria associated with acute renal failure usually results from glomerulonephritis or structural abnormalities (stones, tumors, or infections). Acute tubular necrosis is rarely associated with macroscopic hematuria in the absence of other genitourinary abnormalities. We describe a patient who presented with macroscopic hematuria, in whom only acute tubular necrosis could be identified as a causative factor.