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Infarction of Multiple MCA Branches

A 54-year old man with right carotid stenosis presented with new left sided weakness.

Outline the Infarction

MRI Flair axial scan. Note the high signal in the distribution of multiple MCA branches in the frontal, parietal and posterior parietal areas. The infarct on the far right image is directly on the precentral gyrus (motor strip). As opposed to multiple cardiac emboli that typically affect multiple vascular distributions, this patient had multiple strokes all in the same vascular distribution (i.e., MCA and internal carotid artery).

Revised 04/23/06.
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