Where is a typical location for a cerebral hemispheric stroke?

Where is a typical location for a cerebral hemispheric stroke?

• A. Involvement of the Posterior Cerebral Artery.
• B. Occlusion of the basilar artery.
• C. Involvement of the Middle Cerebral Artery or its branches.
• D. Occlusion of the anterior spinal artery.

Answer: (C)

A cerebral hemispheric stroke most commonly involves the territory supplied by the middle cerebral artery. This artery covers a large, functionally important portion of the lateral cortex, including the primary motor and sensory areas for the face and arm and, on the dominant side, language regions. When the MCA is occluded, you typically see contralateral weakness and sensory loss of the face and arm, and depending on the dominant hemisphere, aphasia; if the nondominant hemisphere is affected, neglect may occur. Other arteries produce different patterns: a posterior cerebral artery stroke mainly affects vision and higher visual processing; basilar artery occlusion impacts brainstem and cerebellar functions; and the anterior spinal artery would affect the spinal cord rather than the cerebral hemispheres.

A cerebral hemispheric stroke most commonly involves the territory supplied by the middle cerebral artery. This artery covers a large, functionally important portion of the lateral cortex, including the primary motor and sensory areas for the face and arm and, on the dominant side, language regions. When the MCA is occluded, you typically see contralateral weakness and sensory loss of the face and arm, and depending on the dominant hemisphere, aphasia; if the nondominant hemisphere is affected, neglect may occur.

Other arteries produce different patterns: a posterior cerebral artery stroke mainly affects vision and higher visual processing; basilar artery occlusion impacts brainstem and cerebellar functions; and the anterior spinal artery would affect the spinal cord rather than the cerebral hemispheres.