Interesting ImagesFDG PET/CT of Hepatoid Adenocarcinoma of the GallbladderJi, Xia MM∗; Dong, Hui MD†; Dong, Aisheng MD‡Author Information From the ∗Department of Gastroenterology, The Second Affiliated Hospital, Jiaxing University, Jiaxing, Zhejiang Province †Department of Pathology, Eastern Hepatobiliary Surgery Hospital ‡Department of Nuclear Medicine, Changhai Hospital, Navy Military Medical University, Shanghai, China. Received for publication July 6, 2020; revision accepted July 12, 2020. Conflicts of interest and sources of funding: none declared. Correspondence to: Xia Ji, MM, Department of Gastroenterology, The Second Affiliated Hospital, Jiaxing University, 1518 North Huancheng Rd, Jiaxing 314000, Zhejiang Province, China. E-mail: [email protected]. Clinical Nuclear Medicine: November 2020 - Volume 45 - Issue 11 - p 927-928 doi: 10.1097/RLU.0000000000003259 Buy Metrics Abstract Primary hepatoid adenocarcinoma of the gallbladder is rare. A 67-year-old woman presented with right upper quadrant abdominal pain with elevated α-fetoprotein level. Abdominal ultrasound and MRI showed a tumor in the gallbladder with normal liver. FDG PET/CT showed increased FDG uptake of the gallbladder tumor with retroperitoneal lymph node metastasis. Cholecystectomy was performed. Primary hepatoid adenocarcinoma of the gallbladder was confirmed by histopathology. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.