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Fluid attenuated inversion recovery coronal sequence of brain (a) showing linear hyperintensity in periaqueductal grey of midbrain and central medulla (block arrow). Axial FLAIR magnetic resonance imaging of brain (b) showing hyperintensity in midbrain tectum and right temporal periventricular region (line arrows). Sagittal T2 weighted MRI of spine (c) done 2.5 years later showing longitudinally extensive transverse myelitis involving cervical cord (C1–C5 vertebral segment)
