Negative 18 F-FDG and Positive 68 Ga-FAPI-04 Findings in a Patient With Acute Cholangitis.

Qi, Na; Ding, Jie; Cheng, Xinwei; Zhao, Jun; Wang, Haiyan · Clin Nucl Med · 2026

case_report · Level V

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Abstract

68 Ga-FAPI PET demonstrates superior detection of primary lesions in cholangiocarcinoma compared with 18 F-FDG PET, making it commonly used in the diagnosis of biliary diseases. Herein, we reported the 18 F-FDG and 68 Ga-FAPI-04 PET/MR findings in a 38-year-old man experiencing acute cholangitis. The lesions exhibited negative 18 F-FDG uptake but intense 68 Ga-FAPI-04 uptake on PET/MR.

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