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Published on: April 21, 2017
Transient global amnesia associated with an acute infarction in the retrosplenium of the corpus callosum
Kozue Saito1, Kazumi Kimura, Kazuo Minematsu
1Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Fujishirodai, Suita, Osaka 565-8565, Japan. ksaito@hsp.ncvc.go.jp
Abstract:
We present a patient with transient global amnesia (TGA) whose diffusion-weighted imaging (DWI) study showed a high-intensity signal in the left retrosplenium of the corpus callosum. In previous studies, lesions in the retrosplenium caused permanent but not transient global amnesia, called retrosplenial amnesia, by involving the thalamocortical portion of the Papez' circuit. This is the first report indicating that TGA can be associated with acute infarction only in the left retrosplenium of the corpus callosum.
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