<% strPathPics = Session("strPathPicsL") imgBg = strPathPics + Session("strMedia") %> Midbrain Infarct

Midbrain Infarction

A 78 year old woman developed the abrupt onset of a right third nerve palsy and a left hemiparesis. Sensation was intact.

Show the Infarction

(Left) MRI Flair image; (Right) Diffusion-weighted image. Note the high signal on the diffusion image in the ventral midbrain and cerebral peduncle. Infarction in the midbrain results in a classic "crossed" neurology syndrome of an ipsilateral 3rd nerve palsy and a contralateral hemiparesis.

Revised 04/23/06.
The Electronic Curriculum is copyrighted 1998,  Case Western Reserve University School of Medicine.