This MRI shows typical high signal intensities (SIs) in the medial thalamus (A), periaqueductal gray (B), mamillary bodies (C), cerebellar vermis (B, C, D), and paravermian superior cerebellum (D). All the lesions represent high SIs on the DWI (E–H). The ADC images of the cerebellar vermis (K, L) and paravermian superior cerebellum (L) show low SIs (arrowheads), whereas other described areas (I, J) show iso-SIs (arrows). Image courtesy of Neurology. Apr 8 2008;70(15):e48.
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