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  • Title: Sixth cranial nerve palsy secondary to compression by dolichoectatic vertebrobasilar artery.
    Author: Jeeva-Patel T, Margolin EA, Mandell D.
    Journal: BMJ Case Rep; 2020 Jul 06; 13(7):. PubMed ID: 32636226.
    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.
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