Ophthalmologic abnormalities on FDG-PET/CT: A pictorial essay

Abstract

Date accepted for publication 19 December 2012 Abstract Positron emission tomography (PET) using [18F]-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. © 2013 International Cancer Imaging Society.