Transient global amnesia
Updates to Case Attributes
The main importance of lesion detection of the lesions in transient global amnesia (TGA) is to exclude other urgent differential diagnoses, such as transient ischemic attack (TIA), seizureseizures, and drug-induced amnesia, once it diagnosis won't change the clinical course of this self-resolving disorder or affect treatment planning.
-<p>The main importance of detection of the lesions in <a title="Transient global amnesia" href="/articles/transient-global-amnesia">TGA</a> is to exclude other urgent differential diagnoses, such as transient ischemic attack, seizure, and drug-induced amnesia, once it diagnosis won't change the clinical course of this self-resolving disorder or affect treatment planning.</p>- +<p>The main importance of lesion detection in <a href="/articles/transient-global-amnesia">transient global amnesia</a> (TGA) is to exclude urgent differential diagnoses, such as <a href="/articles/transient-ischaemic-attack">transient ischemic attack</a> (TIA), <a href="/articles/indication-for-neuroimaging-in-new-onset-seizures">seizures</a>, and drug-induced amnesia.</p>
References changed:
- 1. BS Choi, JH Kim, C Jung, SY Kim. High-Resolution Diffusion-Weighted Imaging Increases Lesion Detectability in Patients with Transient Global Amnesia. (2012) American Journal of Neuroradiology. 33 (9): 1771. <a href="https://doi.org/10.3174/ajnr.A3072">doi:10.3174/ajnr.A3072</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/22538074">Pubmed</a> <span class="ref_v4"></span>
- 1. BS Choi, JH Kim, C Jung, SY Kim. High-Resolution Diffusion-Weighted Imaging Increases Lesion Detectability in Patients with Transient Global Amnesia. (2012) American Journal of Neuroradiology. 33 (9): 1771. <a href="https://doi.org/10.3174/ajnr.A3072">doi:10.3174/ajnr.A3072</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/22538074">Pubmed</a> <span class="ref_v4"></span>
- 2. Christian Enzinger, Felix Thimary, Peter Kapeller, Stefan Ropele, Reinhold Schmidt, Franz Ebner, Franz Fazekas. Transient Global Amnesia. (2008) Stroke. 39 (8): 2219-25. <a href="https://doi.org/10.1161/STROKEAHA.107.508655">doi:10.1161/STROKEAHA.107.508655</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/18583561">Pubmed</a> <span class="ref_v4"></span>
- 2. Christian Enzinger, Felix Thimary, Peter Kapeller, Stefan Ropele, Reinhold Schmidt, Franz Ebner, Franz Fazekas. Transient Global Amnesia. (2008) Stroke. 39 (8): 2219-25. <a href="https://doi.org/10.1161/STROKEAHA.107.508655">doi:10.1161/STROKEAHA.107.508655</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/18583561">Pubmed</a> <span class="ref_v4"></span>
- 3. Quinette, Peggy, Guillery-Girard, Bérengère, Dayan, Jacques, Sayette, Vincent de la, Marquis, Sophie, Viader, Fausto, Desgranges, Béatrice, Eustache, Francis. What does transient global amnesia really mean? Review of the literature and thorough study of 142 cases. (2006) Brain. 129 (7): 1640. <a href="https://doi.org/10.1093/brain/awl105">doi:10.1093/brain/awl105</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/16670178">Pubmed</a> <span class="ref_v4"></span>
- 3. Quinette, Peggy, Guillery-Girard, Bérengère, Dayan, Jacques, Sayette, Vincent de la, Marquis, Sophie, Viader, Fausto, Desgranges, Béatrice, Eustache, Francis. What does transient global amnesia really mean? Review of the literature and thorough study of 142 cases. (2006) Brain. 129 (7): 1640. <a href="https://doi.org/10.1093/brain/awl105">doi:10.1093/brain/awl105</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/16670178">Pubmed</a> <span class="ref_v4"></span>
- Choi BS, Kim JH, Jung C et al. High-Resolution Diffusion-Weighted Imaging Increases Lesion Detectability in Patients with Transient Global Amnesia. Am J Neuroradiol; 2012:1771-4.
- B.S. Choi, J.H. Kim, C. Jung, S.Y. Kim. High-Resolution Diffusion-Weighted Imaging Increases Lesion Detectability in Patients with Transient Global Amnesia. (2012) American Journal of Neuroradiology. 33 (9): 1771. <a href="https://doi.org/10.3174/ajnr.A3072">doi:10.3174/ajnr.A3072</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/22538074">Pubmed</a> <span class="ref_v4"></span>
- Enzinger C, Thimary F, Kapeller P et al. Transient global amnesia: diffusion-weighted imaging lesions and cerebrovascular disease. Stroke; 2008:2219-25.
- Christian Enzinger, Felix Thimary, Peter Kapeller, Stefan Ropele, Reinhold Schmidt, Franz Ebner, Franz Fazekas. Transient Global Amnesia. (2008) Stroke. 39 (8): 2219-25. <a href="https://doi.org/10.1161/STROKEAHA.107.508655">doi:10.1161/STROKEAHA.107.508655</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/18583561">Pubmed</a> <span class="ref_v4"></span>
- Quinette P, Guillery-Girard B et al. What does transient global amnesia really mean? Review of the literature and thorough study of 142 cases. Brain: a journal of neurology; 2006: 1640-58.
- Quinette, Peggy, Guillery-Girard, Bérengère, Dayan, Jacques, Sayette, Vincent de la, Marquis, Sophie, Viader, Fausto, Desgranges, Béatrice, Eustache, Francis. What does transient global amnesia really mean? Review of the literature and thorough study of 142 cases. (2006) Brain. 129 (7): 1640. <a href="https://doi.org/10.1093/brain/awl105">doi:10.1093/brain/awl105</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/16670178">Pubmed</a> <span class="ref_v4"></span>
Updates to Study Attributes
MRI demonstrates small punctate hyperintense foci on the lateral edge of the left hippocampal gyrushippocampus on diffusion-weighted imaging, with corresponding decreased ADC at the same location. There are no other pathological findings.
Updates to Study Attributes
Foci on the lateral edge of the left hippocampal gyrushippocampus on diffusion-weighted imaging, with decreased ADC at the same location (red arrows).