Article Text
Abstract
Dolichoectasia refers to distinct elongation, dilatation and tortuosity of an artery. We present a rare well-illustrated case of dolichoectatic vertebrobasilar artery compressing the cisternal portion of the sixth cranial nerve resulting in chronic sixth nerve palsy. High spatial resolution, three-dimensional, heavily T2-weighted MRI sequences are uniquely positioned to assess the cranial nerves especially in their cisternal and canalicular portions and need to be performed for all patients with non-resolving cranial nerve palsies. Dolichoectatic vessels can be the cause of neurovascular conflict and cause non-resolving oculomotor palsies.
- visual pathway
- neuroopthalmology
- cranial nerves
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