What are the signs and symptoms of ventral midbrain (Weber) syndrome in vertebrobasilar stroke?

Updated: Aug 09, 2021
  • Author: Vladimir Kaye, MD; Chief Editor: Stephen Kishner, MD, MHA  more...
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Weber syndrome occurs with an occlusion of the median and/or paramedian perforating branches of the basilar artery. Typical clinical findings include ipsilateral CN III palsy, ptosis, and mydriasis (ie, damage to parasympathetic fibers of CN III) with contralateral hemiplegia. Weakness of the lower face (corticospinal and corticobulbar tracts) may be noted.

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