| Concurrent hemichorea and migrainous aura--a perfusion study on the basal ganglia using xenon-computed tomography. | |
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MedLine Citation:
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PMID: 18067174 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A variety of etiologies underlie the neurophysiological imbalance resulting in chorea. We report a 57-year-old woman with a long-history of migraine who suddenly experienced concurrent scintillating scotoma and rapid involuntary movement of her neck and right extremities. Diffusion-weighted magnetic resonance imaging (MRI) failed to detect any fresh ischemic and/or hemorrhagic lesions. Xenon-computed tomography (CT) disclosed gross reduction in the cerebral blood flow (CBF) of the left occipital area. With precise mapping to the brain atlas, extreme hyperperfusion in the motor thalamus was found on the left side. Asymmetrical CBF reduction of the left subthalamic nucleus was also noted. Her symptoms gradually improved and completely disappeared within 15 days. Repeated xenon-CT 1 month post-onset demonstrated normalized CBF in the affected areas. Our study suggests that vascular event underlies the migrainous aura in this case and secondarily provokes a loss of inhibitory control of the motor thalamus resulting in the manifestation of hemichorea. |
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Authors:
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Kazumichi Yamada; Mikio Harada; Nobuhiro Inoue; Shinsuke Yoshida; Motohiro Morioka; Jun-ichi Kuratsu |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Movement disorders : official journal of the Movement Disorder Society Volume: 23 ISSN: 1531-8257 ISO Abbreviation: Mov. Disord. Publication Date: 2008 Feb |
Date Detail:
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Created Date: 2008-03-04 Completed Date: 2008-05-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8610688 Medline TA: Mov Disord Country: United States |
Other Details:
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Languages: eng Pagination: 425-9 Citation Subset: IM |
Copyright Information:
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2007 Movement Disorder Society |
Affiliation:
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Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan. yamadakazu@fc.kuh.kumamoto-u.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Basal Ganglia
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pathology* Chorea / complications, pathology* Female Functional Laterality Humans Magnetic Resonance Imaging / methods Middle Aged Migraine with Aura / complications, pathology* Tomography, X-Ray Computed / methods* Xenon / diagnostic use* |
| Chemical | |
Reg. No./Substance:
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7440-63-3/Xenon |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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