title: FDG injection site extravasation: potential pitfall of misinterpretation and missing metastases.
abstract: 18F-FDG PET/CT plays an important role in the management of non-small-cell lung cancers (NSCLC). The treatment options for NSCLC depend upon the initial staging of the disease. The authors report a case with a potential pitfall of overlooking a site of FDG uptake as radiopharmaceutical extravasation at an injection site. The PET/CT demonstrated a T2a N2 bronchial carcinoma, with a solitary focus of FDG uptake at the left antecubital fossa where FDG was administered. Careful interpretation of the images reveals a solitary skeletal metastasis in the left proximal ulna, which makes the disease stage IV rather than IIIA, leading to a significant difference in treatment.
authors.affiliation: Paul Strickland Scanner Centre and Department of Oncology, Mount Vernon Hospital, Middlesex, HA6 2RN, England, UK. luke@sonoda.co.uk
authors.forename: Luke I
authors.initials: LI
authors.lastname: Sonoda
authors.forename: Subhadip
authors.initials: S
authors.lastname: Ghosh-Ray
authors.forename: Bal
authors.initials: B
authors.lastname: Sanghera
authors.forename: Jeanette
authors.initials: J
authors.lastname: Dickson
authors.forename: Wai Lup
authors.initials: WL
authors.lastname: Wong
mesh_terms: D002289:Carcinoma, Non-Small-Cell Lung / Q000000981:diagnostic imaging; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000000981:diagnostic imaging*; D019788:Fluorodeoxyglucose F18 / Q000008:administration & dosage*; D006801:Humans; D007267:Injections; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D064847:Multimodal Imaging; D009362:Neoplasm Metastasis / Q000000981:diagnostic imaging*; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18