Giant cell arteritis (GCA) may cause visually devastating optic neuropathy. In atypical cases, diagnosis of optic neuropathy can be delayed. We present 2 such atypical cases and demonstrate that contrast-enhanced orbital magnetic resonance imaging may be a valuable tool in patient evaluation and aid in the diagnosis of GCA.
Department of Ophthalmology (KCL, DAC), University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina.
Address correspondence to David A. Chesnutt, MD, Department of Ophthalmology, University of North Carolina at Chapel Hill School of Medicine, CB# 7040, 5133 Bioinformatics Building, Chapel Hill, NC 27599-7040; E-mail: email@example.com
Supported by Research to Prevent Blindness, National Institutes of Health (NIH) Grant 1F30DK089695-01 and NIH Grant T32 GM008719.
The authors report no conflicts of interest.