A Case with Viral Encephalitis presenting a Dissociations in the Retrograde Amnesia

J Korean Neurol Assoc > Volume 23(4); 2005 > Article

Journal of the Korean Neurological Association 2005;23(4): 541-546.

역행성 기억상실의 해리를 보인 바이러스성 뇌염 1예

임준성, 김정은a 백민재 김상윤

서울대학교 의과대학 신경과학교실, 대전을지대학병원 신경과a

A Case with Viral Encephalitis presenting a Dissociations in the Retrograde Amnesia

Jun-Seong Lim

Department of Neurology, Seoul National University College of Medicine, Seoul; Department of Neurology, Dae-jeon Eulji University Hospitala, Daejeon, Korea

Abstract

We describe a case of anterograde and retrograde amnesia resulting from probable herpes simplex encephalitis. In retrograde amnesia, dissociations not only between episodic and semantic memories, but also between semantic memories for personal and public things were observed. We postulated, using FDG-PET, that the former was caused by mesial temporal lesions, based on 'multiple trace theory', and the latter, by bilateral lateral temporal lesions, which were probably related to the retrieval of semantic memory, especially for public things. KeyWords:Retrograde amnesia, Dissociation, Fluorine-18-fluorodeoxyglucose positron emission tomography (FDG-PET)