title: Ophthalmologic abnormalities on FDG-PET/CT: a pictorial essay.
abstract: Positron emission tomography (PET) using [(18)F]-2-deoxy-d-glucose (FDG) diagnoses, stages, and restages many cancers and is often better than anatomic imaging alone. However, abnormalities within the orbit present a challenge in evaluation, mainly due to the subtle findings on PET/computed tomography (CT). In addition, this region is typically at the edge of the field of view for the standard base of skull to upper thigh FDG-PET/CT scans. The aim of this pictorial essay is to illustrate several subtle and apparent abnormalities within the orbit that can have a profound impact on patient management and follow-up.
authors.affiliation: Department of Radiology, Division of Nuclear Medicine, St Louis University, Saint Louis, MO 63110, USA.
authors.forename: Razi
authors.initials: R
authors.lastname: Muzaffar
authors.forename: Mohamed A
authors.initials: MA
authors.lastname: Shousha
authors.forename: Lejla
authors.initials: L
authors.lastname: Sarajlic
authors.forename: Medhat M
authors.initials: MM
authors.lastname: Osman
mesh_terms: D005134:Eye Neoplasms / Q000000981:diagnostic imaging*; D019788:Fluorodeoxyglucose F18; D006801:Humans; D064847:Multimodal Imaging / Q000379:methods*; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18