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An acute tiny left putamenal lesion presenting with transient global amnesia
Hee-Jin Kim1, Heejaung Kim, Su Min Lim
1Department of Neurology, College of Medicine, Hanyang University, Hanyang University Hospital, Republic of Korea.
The Neurologist
|February 28, 2012
Summary
Transient global amnesia (TGA) can be caused by lesions in various brain areas. This case highlights a potential link between the putamen and memory, expanding our understanding of TGA.
Area of Science:
- Neurology
- Neuroscience
- Cognitive Science
Background:
- Transient global amnesia (TGA) is a distinct neurological syndrome characterized by temporary memory loss.
- Previous research has linked TGA to lesions in the hippocampus, amygdala, thalamus, caudate nucleus, and neocortex.
Observation:
- A 63-year-old woman presented with symptoms consistent with TGA.
- Neuroimaging revealed a localized lesion specifically in the left putamen.
Findings:
- This case report identifies the putamen as a potential anatomical correlate for TGA.
- The findings suggest that putaminal lesions can precipitate TGA episodes.
Implications:
- The putamen may play a previously unrecognized role in human memory processing.
- This discovery could refine diagnostic approaches and etiological understanding of TGA.
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