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Kidney CT Appearances

 

 


Xanthogranulomatous Pyelonephritis (XGP) CT Findings

  • Large staghorn calculus in most but not all cases with contracted pelvis
  • Extensive inflammatory process
  • Decreased renal function
  • Enlarged kidneys
  • Severe hydronephrosis, expansion of calices
  • Can be associated with extrarenal disease (psoas involvement)

XGP CT Findings

Other Information About XGP

Etiology:

  • Chronic UTI or urinary obstruction

Epidemiology:

  • More common in women
  • Usually present during 5th and 6th decades of life

Presentation:

  • Dull flank pain
  • Fever
  • Chills
  • General malaise

Prognosis:

  • Unilateral XGP can be treated
  • Bilateral XGP is usually fatal

Related Lectures:
CT Evaluation of Hematuria: A Practical Approach Part 2
CT of the Acute Abdomen: GU Applications Part 2
CTA of the Renal Arteries: What You Need to Know - Part 1
CT Evaluation of Hematuria: A Practical Approach - Part 2
Abdominal Pain in the ED: GU Pathology - Part 1

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