A 57-year-old female presented with recurrent episodes of right flank pain and fever.
No pathogens were detected in urine cultures. Intravenous pyelography and computerized
tomography revealed a poor-functioning right kidney with an upper pole cystic tumor.
Barium meal showed a communication between the renal pelvis and the duodenum. A right
nephrectomy was performed with repair of the fistula. Histological examination revealed
chronic pyelonephritis with xanthogranulomatous reaction and cystic renal tumor. The
patient remains well at seven year follow-up.
Key-words:
Duodenum - renal pelvis - fistula - nephrectomy - xanthogranulomatous pyelonephritis.
