Acute Hemichorea as an Unusual Presentation of Internal Carotid Artery Stenosis

Acute Hemichorea as an Unusual Presentation of Internal Carotid Artery Stenosis

Involuntary movement associated with deep watershed ischemic lesions has been rarely reported. A 67-year-old woman presented with acute hemichorea on the left side. Magnetic resonance imaging showed acute infarcts in the anterior border zone. On perfusion studies, impaired cerebral blood flow was ob...

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Bibliographic Details
Main Authors: Kim, Dong Wook, Ko, Youngchai, Jang, Sang Hyun, Yoon, Soo Jin, Oh, Gun-Sei, Lee, Soo Joo, Yun, Dong Joo
Format: Online
Language:English
Published: The Korean Movement Disorder Society 2013
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4027650/
Description
Summary:Involuntary movement associated with deep watershed ischemic lesions has been rarely reported. A 67-year-old woman presented with acute hemichorea on the left side. Magnetic resonance imaging showed acute infarcts in the anterior border zone. On perfusion studies, impaired cerebral blood flow was observed on the subcortical region sparing the basal ganglia. Cerebral angiogram confirmed severe stenosis in the right internal carotid artery. Her hemichorea gradually improved along with normalization of perfusion after carotid artery stenting with angioplasty. We suggest that impaired cerebral blood flow in critical watershed territories may be an important contributing factor in hemichorea associated with carotid occlusive disease.

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