18 F-FDG PET/CT of Intracholecystic Papillary Neoplasm in Cystic Neck and Duct.

Xu, Jun-Yu; Shuai, Yong-Kang; Xie, Yan-Ping; Cao, Su-E; Zou, Qiong · Clin Nucl Med · 2024

case_report · Level V

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Abstract

We report 18 F-FDG PET/CT appearances of intracholecystic papillary neoplasm (ICPN) in the gallbladder neck and duct of a 74-year-old woman with a history of hepatitis B cirrhosis. The lesion presented with a large and sessile soft mass in the neck and duct of gallbladder with obvious glucose metabolism on PET/CT images, which was confirmed pathologically as ICPN (gastric foveolar type) with high-grade intraepithelial neoplasia. ICPN localized in the gallbladder neck and duct is extremely rare, and is easily misdiagnosed as gallbladder carcinoma. Our report aids in the application of PET/CT in the differential diagnosis of ICPN and guiding early surgery.

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