Journal List > Korean J Urol > v.49(12) > 1005046

Jung, Cho, Yang, Song, Park, Park, and Kim: Xanthogranulomatous Pyelonephritis with Spontaneous Nephrocutaneous Fistula

Abstract

Fistula formation between the upper urinary tract and cutaneous tissue is an uncommon complication in urogenital disease. Xanthogranulomatous pyelonephritis (XGP) is a severe, chronic infection of the renal parenchyma that is often associated with calculi and obstruction. We present a rare case of XGP with a nephrocutaneous fistula.

Figures and Tables

Fig. 1
There is a 4×4cm sized area of necrotic skin change with a fistula opening (arrow) in the right flank area.
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Fig. 2
(A) The CT scan shows a fistula tract (arrow) from the lower pole of the right kidney to the right flank area. (B, C) A nephrocutaneous fistula arising from the lower pole of the right kidney (arrow head) and a retroperitoneal abscess (arrow) along the psoas muscle are observed.
kju-49-1158-g002
Fig. 3
(A) The coronally sectioned kidney shows the fistula opening (arrow) in the lower pole and multiple dilated calyces containing yellowish pus. (B) The microscopic findings show lipid that contains foamy macrophages (arrow) (H&E, ×400).
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