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Case Reports
. 2022 Sep 1;47(9):e611-e612.
doi: 10.1097/RLU.0000000000004181. Epub 2022 Apr 6.

Focal Xanthogranulomatous Pyelonephritis on FDG PET/CT

Yong Liu  1 , Guansheng Tong  2 , Zhe Wen  2
Affiliations
Case Reports

Focal Xanthogranulomatous Pyelonephritis on FDG PET/CT

Yong Liu et al. Clin Nucl Med. .

Abstract

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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Conflict of interest statement

Conflicts of interest and sources of funding: none declared.

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