Nuclear Medicine and Molecular Imaging  2009;43(2):150-153

18F-FDG PET/CT Finding in a Case of Xanthogranulomatous Pyelonephritis.

Bong Hoi CHOI 1 ; Sun Pyo HONG ; Joon Kee YOON ; Ki Soo PAI ; Jeong HONG ; Hyun Ee YIM

Affiliations

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Keywords

Xanthogranulomatous pyelonephritis; 18F-FDG; PET/CT

Country

Republic of Korea

Language

Korean

Abstract

Xanthogranulomatous pyelonephritis is an uncommon chronic renal infection, which is usually found on middle-aged women and is rare in infant. Sometimes it forms focal mass like lesion of kidney with pathologically characteristic lipid-laden macrophage. A 1-month female infant was admitted for fever and moaning sound. On work-up of urinary tract infection, abdomen ultrasonography and computed tomography revealed a large mass on the upper portion of right kidney and PET/CT showed homogeneously increased 18F-FDG uptake. The radical nephrectomy of right kidney was performed and histology revealed a focal xanthogranulomatous pyelonephritis. To our knowledge, this is the first report presenting the finding of 18F-FDG PET/CT in the childhood xanthogranulomatous pyelonephritis.