title: Posterior hippocampal stroke presenting with transient global amnesia.
abstract: The acute onset of isolated amnesia is an intriguing challenge for neurologist, because the lack of associated signs can be misleading for diagnosis. The most common cause is transient global amnesia (TGA), a benign condition, but rarely it results from abuse of substance/alcohol or cerebrovascular diseases. In the latter, the brain region involved is the hippocampus. We describe a patient with presenting symptoms of TGA, but affected by an ischemic hippocampal stroke. The computed tomography angiography helped the etiologic diagnosis showing an hemodynamic stenosis of the posterior P2P segment. Interestingly, neuropsychological features were consistent with those found in patients suffering TGA.
authors.affiliation: a Neurology Unit , S. Orsola-Malpighi University Hospital , Bologna , Italy.
authors.forename: Federica
authors.initials: F
authors.lastname: Naldi
authors.affiliation: a Neurology Unit , S. Orsola-Malpighi University Hospital , Bologna , Italy.|b Department of Biomedical and Neuromotor Sciences , University of Bologna , Bologna , Italy.
authors.forename: Simone
authors.initials: S
authors.lastname: Baiardi
authors.affiliation: a Neurology Unit , S. Orsola-Malpighi University Hospital , Bologna , Italy.
authors.forename: Maria
authors.initials: M
authors.lastname: Guarino
authors.affiliation: c Diagnostic and Interventional Neuroradiology Unit , S. Orsola-Malpighi Hospital , Bologna , Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Spinardi
authors.affiliation: a Neurology Unit , S. Orsola-Malpighi University Hospital , Bologna , Italy.|b Department of Biomedical and Neuromotor Sciences , University of Bologna , Bologna , Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Cirignotta
authors.affiliation: a Neurology Unit , S. Orsola-Malpighi University Hospital , Bologna , Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Stracciari
mesh_terms: D000369:Aged, 80 and over; D020236:Amnesia, Transient Global / Q000150:complications* / Q000000981:diagnostic imaging; D005260:Female; D006624:Hippocampus / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D009483:Neuropsychological Tests; D020521:Stroke / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology*; D014706:Verbal Learning / Q000502:physiology
keywords: Stroke; global transient amnesia; hippocampus; neuroimaging; neuropsychology