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A case of recurrent transient global amnesia: don’t forget the hippocampal punctuate diffusion restriction

机译:一例复发的暂时性全球性失忆症:不要忘记海马点状扩散扩散受限

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摘要

Transient global amnesia (TGA) is a syndrome characterized by reversible impairment of short-term memory. TGA itself is a benign disease, however, it is reasonable to investigate and exclude sinister causes of global amnesia; such as stroke or a seizure activity. A case of TGA is presented here with special emphasis on the typical TGA lesion that was detected on the patient’s magnetic resonance imaging (MRI) of Brain. In patients with TGA, the typical MRI Brain finding is a tiny focus of diffusion restriction in the mesiotemporal lobe. This finding can potentially aid in early diagnosis and management of TGA. Although in overwhelming majority of cases, the TGA episode occurs only once, yet a second TGA episode can occur rarely. This patient, two years later, had a recurrence of TGA episode, albeit with a normal MRI brain, and without residual changes from prior episode.
机译:短暂性整体失忆症(TGA)是一种以短期记忆可逆性损伤为特征的综合征。 TGA本身是一种良性疾病,但是,有必要调查并排除导致全球性健忘症的危险原因;例如中风或癫痫发作。这里介绍了一个TGA病例,特别强调了在患者的大脑磁共振成像(MRI)上检测到的典型TGA病变。在患有TGA的患者中,典型的MRI脑部发现只是近颞叶扩散受限的微小焦点。这一发现可能有助于早期诊断和管理TGA。尽管在绝大多数情况下,TGA发作仅发生一次,但是第二TGA发作很少发生。两年后,尽管MRI脑正常,但该患者复发了TGA发作,且先前发作没有残留变化。

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