Metastatic colon cancer to the lung with no detectable primary tumor, mimicking advanced primary lung cancer on F-18 FDG PET/CT imaging.
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.
Kim
Hae Won
HW
Department of Nuclear Medicine, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
Won
Kyoung Sook
KS
Kwon
Kun Young
KY
Choi
Byung Wook
BW
Zeon
Seok Kil
SK
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
D019788:Fluorodeoxyglucose F18