Fig. 2.

Axial T2 FLAIR images showing hyperintensity in the cervical spinal cord (a, arrowhead), medulla oblongata (b, c, arrowheads), and midbrain (d, arrowhead). Cranial MRI showed cerebral white matter abnormalities with frontal predominance (arrowhead) in axial T2 FLAIR images (e). Cranial MRI showed mild atrophy in the midbrain, medulla oblongata, and upper cervical spinal cord in the sagittal T2WI image (f). Axial spinal MRI showed hyperintensity involving the corticospinal tracts extending from carotid 3 (g, arrowhead) to carotid 7 (h, arrowhead) in T2WI. FLAIR, fluid attenuated inversion recovery.