What is the ventral midbrain syndrome?
The ventral midbrain (Weber’s) syndrome is caused by occlusion of median and paramedian perforating branches and may result in:
- Ipsilateral oculomotor paresis, ptosis, and dilated pupil (damage to fascicle of cranial nerve III, including parasympathetic fibers)
- Contralateral hemiplegia, including the lower face (damage to corticospinal and corticobulbar tracts)
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