PMC6377915_01
Arm Levitation as Initial Neurological Manifestation of Creutzfeldt-Jakob Disease. The video shows gait ataxia with an involuntary elevation of the left arm (arm levitation). The patient had only mild cognitive impairment in this evaluation.
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A follow-up brain MRI showed diffusion restriction, predominantly in the right parietal cortex (cortical ribbon sign) and, caudate and putamen (Figure 1A). An electroencephalogram revealed diffuse delta activity, evolving to lateralized (right side) and diffuse periodic sharp wave complexes (Figure 1B).