title: Tumor thrombus in the inferior vena cava from colon cancer detected by 18F-FDG-PET.
abstract: We present a case of inferior vena cava (IVC) tumor thrombus detected by fluorine- 18 fluorodeoxyglucose positron emission tomography (18F-FDG-PET). A man underwent operations for the treatment of sigmoid colon cancer at the age of 63. Because tumor markers [carcinoembryonic antigen (CEA) and CA19-9] were increased at the age of 67, abdominal contrast-enhanced computed tomography (CT) was performed. CT revealed IVC dilatation, including a low-attenuation area. 18F-FDG-PET was performed to make the differential diagnosis between tumor thrombus and clot. 18F-FDG-PET showed that 18F-FDG had accumulated in the IVC region. We considered the IVC tumor thrombus because of the 18F-FDG uptake in the IVC region and the patient's clinical course. To our knowledge, there are a few reports concerning 18F-FDG-PET and IVC tumor thrombus. 18F-FDG-PET may be useful in diagnosing tumor thrombus.
authors.affiliation: Division of Nuclear Medicine, PET Center, Department of Radiology, Kurume University School of Medicine, 67 Asahi-Machi, Kurume City, Fukuoka 830-0011, Japan. hayato@med.kurume-u.ac.jp
authors.forename: Hayato
authors.initials: H
authors.lastname: Kaida
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Ishibashi
authors.forename: Seiji
authors.initials: S
authors.lastname: Kurata
authors.forename: Masafumi
authors.initials: M
authors.lastname: Uchida
authors.forename: Naofumi
authors.initials: N
authors.lastname: Hayabuchi
mesh_terms: D003110:Colonic Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging*; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*; D020246:Venous Thrombosis / Q000000981:diagnostic imaging*
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18