What is emphysematous pyelitis (pneumopyonephrosis)?

Updated: Jul 01, 2021
  • Author: Tibor Fulop, MD, PhD, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Emphysematous pyelitis (pneumopyonephrosis) involves gas that is localized to the collecting system. Diabetes mellitus is present in 85-100% of patients. The left kidney is more frequently affected than the right. Presentation is similar to that of pyelonephritis. On plain radiographs, the gas pattern is noted in the renal pelvis and may be seen in the ureter. The patient should be admitted and treated with intravenous antibiotics. The mortality rate is 20%.

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