신부전으로 발현된 양측성 황색육아종성 신우신염 1예

Xanthogranlomatous pyelonephritis is a rare chronic inflammatory renal disease. Its clinical and radiological findings resemble other renal parenchymal diseases, such as a renal abscess or renal cell carcinoma. Only a histologic examination can confirm xanthogranulomatous pyelonephritis. It usually presents unilaterally and displays relatively normal renal function. Bilateral xanthogranulomatous pyelonephritis is extremely rare. The renal function of bilateral xanthogranulomatous pyelonephritis is usually normal at the time of diagnosis, but progresses to end stage renal failure as the disease progresses. We experienced a case of bilateral xanthogranulomatous pyelonephritis, and its initial manifestation was renal failure. We report this case with a review of the literatures.