Plate 17.350 Middle Cerebral Artery Infarct
Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Human, 10% formalin, Weigert's hematoxylin (Loyez), 9 x.
This is a coronal section of the brain at the level of the corpus striatum, showing a middle cerebral artery infarct. The structures involved in the infarct are those supplied by the middle cerebral artery and include, at this level, the caudate nucleus, internal capsule, putamen, insula, globus pallidus, and the lateral surface of the hemisphere. Patients with this type of infarct will show contralateral weakness or paralysis of the upper motor neuron variety involving mainly the face and upper extremities. The lower extremity will be largely spared because its area of cortical representation is supplied by the anterior cerebral artery. Middle cerebral artery infarcts in the dominant left hemisphere will also be associated with disturbance in language known as aphasia.
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