Middle Cerebral Artery - Occlusion

Occlusion

Occlusion of the middle cerebral artery results in Middle cerebral artery syndrome, potentially showing the following defects:

1. Paralysis (-plegia) or weakness (-paresis) of the contralateral face and arm (faciobrachial)
2. Sensory loss of the contralateral face and arm.
3. Damage to the dominant hemisphere (usually the left hemisphere) results in aphasia i.e. Broca's or Wernicke's
4. Damage to the non-dominant hemisphere (usually the right hemisphere) results in contralateral neglect syndrome
5. Large MCA infarcts often have deviation conjugée, a gaze preference towards the side of the lesion, especially during the acute period. Contralateral homonymous hemianopsia is often present.