Emphysematous Pyelonephritis with Renal Artery Pseudoaneurysm

Kevin Koo, Elias S. Hyams

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Emphysematous pyelonephritis is an acute infection of the renal parenchyma and perinephric tissues caused by gas-forming microorganisms, resulting in the radiographic presence of gas in the kidney, collecting system, and surrounding spaces. Here we present a case of severe emphysematous pyelonephritis in the setting of Klebsiella urosepsis. Surgical exploration of the flank revealed infectious disintegration of the renal parenchyma into a large phlegmon. The post-operative course was complicated by renal artery pseudoaneurysm and cutaneous fistualization of a perinephric fluid collection. Despite the high rate of mortality associated with this condition, the patient survived and has remained clinically well.

Original languageEnglish (US)
Pages (from-to)28-30
Number of pages3
JournalUrology Case Reports
StatePublished - Jul 1 2017
Externally publishedYes


  • Emphysematous pyelonephritis
  • Infection
  • Pseudoaneurysm
  • Urosepsis

ASJC Scopus subject areas

  • Urology


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