title: FDG PET/CT findings of common bile duct tuberculosis.
abstract: Common bile duct (CBD) tuberculosis is rare. A 39-year-old woman was referred because of a 5-month history of abdominal pain. Abdominal enhanced MRI and CT showed dilatation of the distal CBD with irregularly thickened wall. Enhanced CT revealed enlarged retroperitoneal lymph nodes. FDG PET/CT showed increased FDG uptake of the CBD lesion and several retroperitoneal lymph nodes with slight FDG uptake. CBD cholangiocarcinoma with retroperitoneal lymph node metastasis was suspected. CBD tuberculosis was confirmed by endoluminal biopsy. Tuberculosis should be considered in the differential diagnosis of abnormal biliary FDG accumulation, particularly in tuberculosis endemic areas.
authors.affiliation: From the *Department of Nuclear Medicine, †Department of Pathology, and ‡Department of Radiology, Changhai Hospital, Shanghai, China.
authors.forename: Aisheng
authors.initials: A
authors.lastname: Dong
authors.forename: Yang
authors.initials: Y
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Gong
authors.forename: Changjing
authors.initials: C
authors.lastname: Zuo
mesh_terms: D003135:Common Bile Duct / Q000000981:diagnostic imaging*; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed; D014376:Tuberculosis / Q000000981:diagnostic imaging*
chemical_list: D019788:Fluorodeoxyglucose F18