Xanthogranulomatous Xanthogranulomatous Pyelonephrit isPyelonephrit is

� Rare severe chronic renal infectionRare severe chronic renal infection� Obstructive infective uropathy secondary to Obstructive infective uropathy secondary to

calculicalculi� Lipid-laden macrophages - xanthoma cellsLipid-laden macrophages - xanthoma cells� Chronic clinical course of flank pain, fever Chronic clinical course of flank pain, fever

and bacteriuria with malaise.and bacteriuria with malaise.� Retroperitoneal inflammatory reactionRetroperitoneal inflammatory reaction

Investigation;Investigation;� KUB - calculiKUB - calculi� CT Scan - renal mass with multiple small CT Scan - renal mass with multiple small

abscessesabscesses

Management;Management;� Nephrectomy ± colectomy / splenectomyNephrectomy ± colectomy / splenectomy� Cutaneous FistulaCutaneous Fistula