J Korean Neurol Assoc.
2007 May;25(2):209-212.
Three Cases of Transient Global Amnesia with Focal High Signal Intensity in Hippocampus in Diffusion Weighted Image
- Affiliations
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- 1Department of Neurology, College of Medicine, Kangwon National University, Korea. marinen@kangwon.ac.kr
- 2Department of Neurology, College of Medicine, Korea University, Korea.
Abstract
- Transient global amnesia (TGA) is an amnesic disorder which is characterized by temporary loss of anterograde and recent retrograde memory with preserved consciousness. Though the pathogenesis of TGA is still unclear, current hypotheses include migraine, seizure, or cerebral ischemia. We present three patients with TGA who showed signal intensity change in diffusion weighted image in hippocampus. These findings might suggest that ischemia in hippocampus might be the cause of the TGA.
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