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Published on: December 20, 2014
Xanthogranulomatous Pyelonephritis with Incomplete Double Ureter
Yutaro Hayashi1, Takashi Kawahara1, Yusuke Hattori1
1Departments of Urology and Renal Transplantation, Yokohama City University Medical Center, Yokohama, Japan.
Introduction:
Xanthogranulomatous pyelonephritis (XGP) is a type of chronic renal inflammation that usually occurs in immunocompromised middle-aged women with chronic urinary tract infection or ureteral obstruction induced by the formation of ureteral stones. XGP with an incomplete double ureter is extremely rare.
Case Presentation:
A 76-year-old woman was referred to our department to undergo further examination for a left renal tumor that was detected by ultrasonography. Dynamic contrast computed tomography (CT) revealed an enhanced tumor in the upper renal parenchyma. Laparoscopic radical nephrectomy was performed based on a preoperative diagnosis of renal cell carcinoma. Histological sections showed the aggregation of foam cells; thus, XGP was diagnosed.
Conclusion:
We herein report a rare case of XGP in the upper pole of the kidney, which might have been associated with an incomplete double ureter.
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