68 Ga-FAPI-04 Versus 18 F-FDG PET/CT in a Case of Xanthogranulomatous Cholecystitis.

Xie, Yang; Lin, Xinyi; Chen, Yue · Clin Nucl Med · 2025

case_report · Level V

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Abstract

Xanthogranulomatous cholecystitis (XGC) is an uncommon inflammatory disease of the gallbladder. We report a case of XGC with elevated activity of 18 F-FDG and 68 Ga-FAPI (fibroblast activating protein inhibitor), which mimics malignancy. Our case suggests that XGS should be considered in the differential diagnosis of cancer-like gallbladder lesions with increased 68 Ga-FAPI uptake.

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