title: Metastatic colon cancer to the lung with no detectable primary tumor, mimicking advanced primary lung cancer on F-18 FDG PET/CT imaging.
abstract: An 83-year-old man was referred with a right lung mass on dynamic chest computed tomography (CT). F-18 fluoro-deoxy-glucose positron emission tomography (FDG PET)/CT showed intense FDG uptake in the right lung mass and bilateral hypermetabolic mediastinal lymph nodes. CT-guided biopsy of the right lung mass revealed metastatic adenocarcinoma from the colon, but a colon cancer lesion was not detected by dynamic abdominal CT and colonoscopy.
authors.affiliation: Department of Nuclear Medicine, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
authors.forename: Hae Won
authors.initials: HW
authors.lastname: Kim
authors.forename: Kyoung Sook
authors.initials: KS
authors.lastname: Won
authors.forename: Kun Young
authors.initials: KY
authors.lastname: Kwon
authors.forename: Byung Wook
authors.initials: BW
authors.lastname: Choi
authors.forename: Seok Kil
authors.initials: SK
authors.lastname: Zeon
mesh_terms: D000369:Aged, 80 and over; D003110:Colonic Neoplasms / Q000473:pathology*; D003937:Diagnosis, Differential; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000556:secondary*; D008297:Male; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18