A 71 year old man with rapid onset of anterograde amnesia Teaching NeuroImages Neurology Resident and Fellow Section © 2015 American Academy of Neurology.

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Presentation transcript:

A 71 year old man with rapid onset of anterograde amnesia Teaching NeuroImages Neurology Resident and Fellow Section © 2015 American Academy of Neurology

Presentation Sudden onset of anterograde amnesia accompanied by repetitive questioning Symptoms lasted 12 hours No focal neurological deficit were appreciated Cuello-Oderiz et al. © 2015 American Academy of Neurology

Imaging A B D © 2015 American Academy of Neurology Cuello-Oderiz et al. C

“Hippocampal foci of restricted diffusion in transient global amnesia” Punctuate hippocampal DWI hyperintensities are described in up to 80% of patients and usually appears 24 to 72 hours after TGA onset Similar lesions may be seen in posterior cerebral artery stroke but most of these patients do not exhibit TGA-like features © 2015 American Academy of Neurology Cuello-Oderiz et al.