Which physical findings are characteristic of top-of-the-basilar syndrome in basilar artery thrombosis?

Updated: Jan 11, 2019
  • Author: Salvador Cruz-Flores, MD, MPH, FAHA, FCCM, FAAN, FACP, FANA; Chief Editor: Helmi L Lutsep, MD  more...
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Answer

This is the manifestation of upper brainstem and diencephalic ischemia caused by occlusion of the rostral basilar artery, usually by an embolus. Patients present with changes in the level of consciousness. They may experience visual symptoms such as hallucinations and/or blindness. Third nerve palsy and pupillary abnormalities are also frequent. Motor abnormalities include abnormal movements or posturing


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