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(a) Sagittal and axial T2-weighted spinal MR imaging showing hyperintense lesions longitudinally extended from C1 to C5 and from C6 to T6, involving the central spinal cord, with bright spotty lesions. (b) Axial T2-weighted fluid-attenuated inversion recovery (FLAIR) with hyperintense lesion in the brainstem involving the dorsal medulla (area postrema). (c) Coronal T1-weighted brain MRI shows a lesion on the right ventrothalamic area.
