Abstract
Introduction: Emphysematous pyelonephritis (EP) is a lethal infection which is rarely seen and is
characterized by gas in intrarenal or perirenal region. The traditional treatment of EP is open surgical flowing
and parenteral antibiotherapy or nephrectomy. In this study a 74 years old male patient with EP treated with
percutaneous drainage catheter and comprehensive antibiotherapy because of no clinical response to
antibiotherapy is presented.