“Top of the basilar” syndrome

摘要: Infarction of rostral brainstem and cerebral hemispheral regions fed by the distal basilar artery causes a clinically recognizable syndrome characterized visual, oculomotor, behavioral abnormalities, often without significant motor dysfunction. Rostral infarction produces oculomotor pupillary signs that are identical to those in thalamic hemorrhage. Somnolence, vivid hallucinations dreamlike behavior may also accompany infarction. Temporal occipital infarctions frequently accompanied hemianopia with distinctive characteristics, fragments Balint syndrome, amnestic dysfunction, agitated behavior. The “top basilar” is most due an embolus.