Korean J Nephrol.  2005 Nov;24(6):1011-1015.

A Case of Bilateral Psoas Abscess Complicated by Acute Pyelonephritis due to Klebsiella Pneumoniae

Affiliations
  • 1Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea. sayoon@catholic.ac.kr
  • 2Department of Radiology, The Catholic University of Korea, Seoul, Korea.

Abstract

Psoas abscess is rarely encountered with various etiologies and nonspecific clinical presentation, frequently resulting in delayed diagnosis, with increased morbidity and mortality. Two types of psoas abscess are recognized. The primary psoas abscess is generally following hematogenous dissemination of an infectious agent and the source is usually occult. The most frequently isolated pathogen is Staphylococcuss aureus. On the other hand, the secondary abscess is the result of local extension of an infectious process near the psoas muscle, especially in diabetes, malnutrition, alcoholism, and steroid abuse. A 83-year-old woman presented with high fever and progressive back pain. Abdominal CT scan showed bilateral psoas abscesses combined with lobulated kidney. Both cultures of blood and urine showed Klebsiella pneumoniae. By prolonged antibiotic treatment and abscess drainage, she showed clinical, and radiological improvement. Here, we report an unusual case of bilateral pyogenic psoas abscess complicated by acute pyelonephritis due to Klebsiella pneumonia.

Keyword

Psoas abscess; Acute pyelonephritis; Klebsiella pneumoniae

MeSH Terms

Abscess
Aged, 80 and over
Alcoholism
Back Pain
Delayed Diagnosis
Drainage
Female
Fever
Hand
Humans
Kidney
Klebsiella pneumoniae*
Klebsiella*
Malnutrition
Mortality
Pneumonia
Psoas Abscess*
Psoas Muscles
Pyelonephritis*
Tomography, X-Ray Computed
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