J Korean Neurol Assoc.
2016 Nov;34(5):360-362. 10.17340/jkna.2016.4.13.
Hippocampal Hyperintensities on Diffusion-Weighted MRI without Transient Global Amnesia
- Affiliations
-
- 1Department of Neurology, Konkuk University School of Medicine, Seoul, Korea. hykimmd@gmail.com
- 2Department of Radiology, Konkuk University School of Medicine, Seoul, Korea.
- KMID: 2359450
- DOI: http://doi.org/10.17340/jkna.2016.4.13
Abstract
- Dot-like hippocampal hyperintensities on diffusion-weighted magnetic resonance imaging (MRI) have been reported as an interesting imaging finding of transient global amnesia (TGA). We report three patients with such dot-like hippocampal hyperintensities who did not present with anterograde amnesia. Episodes associated with the Valsalva maneuver such as nausea or vomiting might have produced the dot-like hippocampal hyperintensities in these patients. However, depending on the individual susceptibility to hippocampal lesions, clinical symptoms of TGA might not be present even when hippocampal lesions are present.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Hippocampal Lesions of Diffusion Weighted Magnetic Resonance Image in Patients with Headache without Symptoms of Transient Global Amnesia
- Transient global amnesia associated with multiple lesions in the corpus callosum and hippocampus
- Transient Global Amnesia Developed in a 14-Year Old Girl during Cellular Phone Texting
- Three Cases of Transient Global Amnesia with Focal High Signal Intensity in Hippocampus in Diffusion Weighted Image
- Comparison of Electroencephalography and Diffusion-Weighted MR Findings in Transient Global Amnesia Patients
