Naldi Federica, Baiardi Simone, Guarino Maria, Spinardi Luca, Cirignotta Fabio, Stracciari Andrea
a Neurology Unit , S. Orsola-Malpighi University Hospital , Bologna , Italy.
b Department of Biomedical and Neuromotor Sciences , University of Bologna , Bologna , Italy.
Neurocase. 2017 Feb;23(1):22-25. doi: 10.1080/13554794.2016.1270329. Epub 2016 Dec 22.
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.
孤立性失忆的急性发作对神经科医生来说是一个饶有趣味的挑战，因为缺乏相关体征可能会给诊断带来误导。最常见的病因是短暂性全面性失忆症（TGA），这是一种良性病症，但极少数情况下是由药物/酒精滥用或脑血管疾病引起的。在后一种情况下，受累的脑区是海马体。我们描述了一名表现出TGA症状，但患有缺血性海马体中风的患者。计算机断层血管造影术有助于病因诊断，显示后P2P段存在血流动力学狭窄。有趣的是，神经心理学特征与TGA患者的特征一致。
