Severe Obstructive Emphysematous Pyelonephritis Caused by Citrobacter koseri Requiring Delayed Nephrectomy: A Case Report.
Emphysematous pyelonephritis (EPN) is a life-threatening necrotizing urinary tract infection requiring prompt antimicrobial therapy and source control. An 80-year-old man with diabetes mellitus presented to our emergency department with septic shock. Computed tomography (CT) showed extensive gas formation and abscess c...