Fig. 1.

Magnetic resonance imaging of the patient two months after onset of multiple sclerosis symptoms.

A- Hyperintense lesion in the right corona radiata, in axial T2-FLAIR.

B- Susceptibility-weighted imaging (SWI) showing a periventricular longitudinal central vein in a demyelinating lesion in the right corona radiata. The central vein sign is a marker for multiple sclerosis (9).

C- Demyelinating lesions perpendicular to the right lateral ventricle, in axial T2-FLAIR.

D- Juxtacortical lesion identified in the left superior frontal gyrus, in axial T2-FLAIR.

E- Short-tau inversion recovery (STIR) imaging in sagittal T1, showing a hyperintense lesion at C2-C3 level.

F- Axial T1 of the cervical spinal cord, showing a gadolinium-enhancing lesion in the lateral funiculus at C2-C3 level.

G- Sagittal T1 with fat saturation, showing hyperintensity in the right olfactory bulb.

H- Coronal T1, showing thinning of the olfactory bulbs.