Xanthogranulomatous pyelonephritis


  • A destructive granulomatous inflammatory process of renal parenchyma as the result of long-term urinary tract obstruction and infection

Clinical features


  • Seventy percent of patients are female.

  • Ages range widely, from newborn to elderly.

  • Urine cultures most frequently show Escherichia coli and Proteus mirabilis.

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