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Updated: May 27, 2026
Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat
Published on: February 5, 2011
Bihemispheric subcortical infarcts in the middle cerebral artery territory
Hiroshi Kataoka1, Masahiro Kumazawa, Tesseki Izumi
1Department of Neurology, Nara Medical University, Kashihara, Nara, Japan.
Background And Purpose:
Previous studies have suggested embolic mechanisms for bihemispheric subcortical infarcts involving the anterior and posterior circulation. However, the mechanism of bihemispheric subcortical infarcts in middle cerebral artery (MCA) territories remains uncertain. We describe a patient with acute bihemispheric subcortical infarcts in restricted MCA territories suggesting an embolic mechanism.
Case Description:
A 62-year-old woman with a history of hypertension and hyperlipidemia suddenly presented with left hemiplegia. Diffusion-weighted and T(2)-weighted magnetic resolution imaging of the brain showed multiple subcortical high intensity in the MCA territories. There were no acute infarctions in the cerebrum, brain stem, or cerebellum, including cortical lesions. The patient had no carotid, internal carotid artery, or MCA disease.
Conclusion:
Bihemispheric subcortical infarcts in the MCA territory are likely to have a proximal embolic source and such infarcts could be associated with multiple subcortical infarcts due to small vessel disease.
