Emphysematous urinary tract infection is a rare, fulminant complication that ischaracterized by the presence of gas in the pelvicaliceal system, renal parenchyma, perinephrictissues and retroperitoneum. Surgical resection is usually regarded as the treatment of choice, however several studies have shown the safety and efficacy of conservative management under the correct diagnosis and appropriate antibioticadministration. We herein report on two cases of emphysematous urinary tract infection, pyelonephritisand cystitis infected with ESBL-producing Escherichia coli,complicated with diabeticmellitus which were successfully treated with conservative treatment.
