Journal
CLINICAL NUCLEAR MEDICINE
Volume 47, Issue 9, Pages E611-E612Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/RLU.0000000000004181
Keywords
xanthogranulomatous pyelonephritis; FDG PET/CT
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Xanthogranulomatous pyelonephritis is a rare disease that can be misdiagnosed as malignancy, and FDG PET/CT imaging is helpful for diagnosis.
Xanthogranulomatous pyelonephritis is a rare disease that was often accompanied with urinary obstruction. The focal form of xanthogranulomatous pyelonephritis is frequently misdiagnosed as malignancy. Here we present FDG PET/CT findings of a case focal xanthogranulomatous pyelonephritis in a 66-year-old woman with polycystic liver and kidney disease. The image showed a polycystic mass in the inferior pole of right kidney with high FDG uptake in the cystic wall, which was suggestive of a cystic renal carcinoma. Right radical nephrectomy was subsequently performed. The postsurgical pathology revealed xanthogranulomatous pyelonephritis.
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