title: Inadvertent intraarterial injection of ¹⁸F-FDG: a case report and literature review of hot forearm and hot hand signs.
abstract: Unintentional intraarterial injection of radiotracers may cause artifacts leading to difficulties in accurately interpreting PET/CT images. We report a case of a 73-y-old man with a history of metastatic colon cancer who underwent a PET/CT scan for restaging. In the PET scan, there was intense and diffuse distribution of (18)F-FDG in his left forearm and hand. This is a classic sign of an accidental intraarterial injection of (18)F-FDG in the antecubital region. Similar phenomena after inadvertent intraarterial injection of other radiotracers are reviewed. The associated risk factors, preventive measures, and radiation dose to the arm are discussed.
authors.affiliation: Department of Nuclear Medicine, Peking Union Medical College Hospital, Beijing, China.
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Zhu
authors.forename: Mohan
authors.initials: M
authors.lastname: Doss
authors.forename: Huangying
authors.initials: H
authors.lastname: Tan
authors.forename: Steven
authors.initials: S
authors.lastname: Feigenberg
authors.forename: Jian Q
authors.initials: JQ
authors.lastname: Yu
mesh_terms: D000368:Aged; D016477:Artifacts; D019788:Fluorodeoxyglucose F18 / Q000008:administration & dosage*; D005542:Forearm / Q000000981:diagnostic imaging*; D006225:Hand / Q000000981:diagnostic imaging*; D006801:Humans; D007269:Injections, Intra-Arterial; D008297:Male; D019300:Medical Errors; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals / Q000008:administration & dosage
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18