Acute renal failure caused by Klebsiella pneumoniae pyelonephritis

We report a 34-year-old male patient without prior medical history who pres ented with acute renal failure due to acute bacterial pyelonephritis. Both blood and urine cultures grew Klebsiella pneumoniae. Although a kidney biop sy revealed extensive necrosis and no viable glomeruli, renal function reco vered to near normal after intermittent hemodialysis and antibiotic therapy . We believe that it is important to include this entity in the differentia l diagnosis of acute renal failure since proper diagnosis and treatment is essential for recovery of renal function. Furthermore, we would like to dra w attention to Klebsiella pneumoniae as an important potential pathogen in such cases, in addition to Escherichia coli.