Ann Clin Neurophysiol.  2019 Jul;21(2):102-104. 10.14253/acn.2019.21.2.102.

Transient global amnesia associated with multiple lesions in the corpus callosum and hippocampus

• Kim JA
• Min YG
• Koo DL

• KMID: 2454732
• DOI: http://doi.org/10.14253/acn.2019.21.2.102

Abstract

Transient global amnesia is a syndrome of temporary loss of short-term memory and is not accompanied by any other neurological deficit. Diffusion-weighted imaging is useful to improve the diagnostic accuracy of transient global amnesia. We report a 68-year-old woman with multiple lesions on diffusion-weighted imaging in the right corpus callosum and left hippocampus. To the best of our knowledge, this is the first case of a diffusion-weighted imaging lesion in the body portion of the corpus callosum.

Keyword

Transient global amnesia; Stroke; Magnetic resonance imaging

MeSH Terms

Aged
Amnesia, Transient Global*
Corpus Callosum*
Female
Hippocampus*
Humans
Magnetic Resonance Imaging
Memory, Short-Term
Stroke

Figure

• 

  Fig. 1 Hyperintensities on a magnetic resonance imaging scan in a patient with recurrent transient global amnesia (TGA) episodes. In the first TGA episode, diffusion-weighted imaging (DWI) revealed hyperintense lesions in (A, arrow) the left hippocampus and (B, arrow) the right corpus callosum. In the second TGA episode, (C, arrows) hyperintense lesions on DWI and (D, arrows) apparent-diffusion-coefficient-matched low signal intensities were located in the left hippocampus.

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