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首页> 外文期刊>Journal of stroke and cerebrovascular diseases: The official journal of National Stroke Association >Retrosplenial amnesia without topographic disorientation caused by a lesion in the nondominant hemisphere
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Retrosplenial amnesia without topographic disorientation caused by a lesion in the nondominant hemisphere

机译：非优势半球病变引起的脾后健忘症

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摘要

We report the case of a 68-year-old right-handed man who was admitted to our hospital because of sudden onset of headache. On admission, he presented with left homonymous hemianopsia, disorientation, and recent memory disturbance; however, he had normal remote memory and digit span. He was able to recall the room layout of his house and describe the route from the nearest station to his home on a map. However, at the hospital, he sometimes lost his way because of amnesia. Computed tomography (CT) and magnetic resonance imaging revealed a subcortical hematoma in the right occipital forceps and the parietal lobe, involving the cingulate isthmus. Single-photon emission CT imaging showed reduced perfusion not only in the retrosplenial region but also in the right thalamus. These findings suggested that the retrosplenial amnesia might have been caused by the interruption of hippocampal input into the anterior thalamus.
机译：我们报告了一名因头痛突然发作而入院的68岁右撇子男子的病例。入院时，他出现左同音偏盲，方向障碍和近期记忆障碍。但是，他的远程存储器和数字跨度正常。他能够回忆起房屋的房间布局，并在地图上描述从最近的车站到他家的路线。但是，在医院，他有时会因失忆而迷路。计算机断层扫描（CT）和磁共振成像显示右枕骨钳和顶叶中存在皮层下血肿，涉及扣带回峡部。单光子发射CT成像显示，不仅在脾后区域而且在右丘脑中的灌注减少。这些发现表明，脾后遗忘症可能是由于海马向前丘脑的输入中断引起的。

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