A 39-year-old man with subacute left optic neuritis but persistent decreased visual acuity. A 39-year-old man with subacute left optic neuritis but persistent.

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Presentation transcript:

A 39-year-old man with subacute left optic neuritis but persistent decreased visual acuity. A 39-year-old man with subacute left optic neuritis but persistent decreased visual acuity. This was a clinically isolated syndrome, which carries a risk for the subsequent diagnosis of MS. A, Mildly motion-degraded coronal T2 FSE images do not show any signal-intensity abnormality within the optic nerves (arrows). B, Coronal XETA image easily shows hyperintensity within the intracanalicular portion of the left optic nerve as compared to the right optic nerve (arrows). A.H. Aiken et al. AJNR Am J Neuroradiol 2011;32:301-305 ©2011 by American Society of Neuroradiology