PT - JOURNAL ARTICLE AU - Zhaohui Zhu AU - Mohan Doss AU - Huangying Tan AU - Steven Feigenberg AU - Jian Q. Yu TI - Inadvertent Intraarterial Injection of <sup>18</sup>F-FDG: A Case Report and Literature Review of Hot Forearm and Hot Hand Signs AID - 10.2967/jnmt.111.089011 DP - 2011 Dec 01 TA - Journal of Nuclear Medicine Technology PG - 249--251 VI - 39 IP - 4 4099 - http://tech.snmjournals.org/content/39/4/249.short 4100 - http://tech.snmjournals.org/content/39/4/249.full SO - J. Nucl. Med. Technol.2011 Dec 01; 39 AB - 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 18F-FDG in his left forearm and hand. This is a classic sign of an accidental intraarterial injection of 18F-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.