title: Xanthogranulomatous cholecystitis mimicking gallbladder carcinoma with a false-positive result on fluorodeoxyglucose PET.
abstract: Recently, several reports have demonstrated that fluorine-18 fluorodeoxyglucose positron emission tomography (FDG-PET) is useful in differentiating between benign and malignant lesions in the gallbladder. However, there is a limitation in the ability of FDG-PET to differentiate between inflammatory and malignant lesions. We herein present a case of xanthogranulomatous cholecystitis misdiagnosed as gallbladder carcinoma by ultrasonography and computed tomography. FDG-PET also showed increased activity. In this case, FDG-PET findings resulted in a false-positive for the diagnosis of gallbladder carcinoma.
authors: Department of Surgery, Kanazawa Social Insurance Hospital, Kanazawa Ishikawa, Japan. i.makino@staff.kanazawa-u.ac.jp
authors: Isamu
authors: I
authors: Makino
authors: Takahiro
authors: T
authors: Yamaguchi
authors: Nariatsu
authors: N
authors: Sato
authors: Toshiaki
authors: T
authors: Yasui
authors: Ichiro
authors: I
authors: Kita
mesh_terms: D000368:Aged; D002277:Carcinoma / Q000175:diagnosis*; D002764:Cholecystitis / Q000175:diagnosis*; D005189:False Positive Reactions; D019788:Fluorodeoxyglucose F18; D005706:Gallbladder Neoplasms / Q000175:diagnosis*; D006801:Humans; D008297:Male; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18