Brain infarction or ischemia by territory.
Depending on which vessel is blocked, a variety of stroke syndromes can result and produce unique symptoms and physical findings.
Anterior cerebral artery (ACA) territory infarct
This is a relatively uncommon type of stroke, occuring in less than 2% of ischemic strokes. This results in sensory and motor loss in the opposite lower extremity, with sparing of the hands and face. Right-sided strokes can result in confusion and hemineglect. These patients will ignore one side of the body.
Middle cerebral artery (MCA)
This vessel is the most commonly involved artery in strokes. Typical symptoms include unilateral weakness, facial weakness and sensory loss on the opposite side of the body. If the dominant hemisphere is involved, inattention, neglect, and speech difficulties are commonly noted. [46]
