A 72-year-old Afro-Caribbean woman presented with diplopia, vertigo, intermittent vomiting, progressively worsening ataxia ([video 1][1]) and nystagmus ([video 2][2], segment 1) over a period of 4 months. There was a… Click to show full abstract
A 72-year-old Afro-Caribbean woman presented with diplopia, vertigo, intermittent vomiting, progressively worsening ataxia ([video 1][1]) and nystagmus ([video 2][2], segment 1) over a period of 4 months. There was a 2-year history of type 2 diabetes mellitus and hypothyroidism being treated with
               
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