Ann Clin Neurophysiol.  2023 Oct;25(2):103-105. 10.14253/acn.2023.25.2.103.

Recurrent transient amnesia: a case of transient epileptic amnesia misdiag-nosed as transient global amnesia

  • 1Department of Neurology, Inje University Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea


Transient epileptic amnesia and transient global amnesia both exhibit temporary memory loss. The lack of clues of epileptic events and the absence of epileptiform abnormalities in electroencephalography, a clear brain lesion, and interictal cognitive decline can make diagnoses challenging. Here we present a middle-aged female who experienced long-term recurrent transient epileptic amnesia with subtle epileptic features over a period of 3 years.


  • Fig. 1. (A) Brain oblique coronal T2-weighted fluid-attenuated inversion-recovery magnetic resonance imaging produced unremarkable findings in the mesial temporal lobes, including the hippocampus. (B) Interictal brain perfusion single-positron-emission computed tomography showed decreased perfusion in the left anterior temporal lobe (white arrow), suggesting an epileptic focus. (C) Electroencephalography showed epileptiform discharges in the left anterior temporal area (black arrows).


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