Brain MRI of a clinically isolated syndrome suggestive of multiple sclerosis presenting as optic neuritis

Brain MRI of a 30-year-old patient presenting with optic neuritis.

(A) Fat-saturated T2-weighted coronal image shows hyperintensity in the right optic nerve (arrow).

(B) Post-gadolinium fat-saturated T1-weighted coronal image shows abnormal enhancement in the right optic nerve (arrow).
(C) Four years later, sagittal FLAIR shows two plaques radiating outward from the corpus callosum (arrowheads), suggestive of multiple sclerosis.