<p>Vertebrobasilar Dolichoectasia as a Rare Cause of Simultaneous Abducens and Vestibulocochlear Nerve Symptoms: A Case Report and Literature Review</p>

Abstract

Vertebrobasilar dolichoectasia (VBD) can lead to cranial nerve symptoms. However, multiple cranial nerve symptoms associated with VBD in one case remain extremely rare. We here present the case of a 33-year-old male with VBD diagnosed by multimodality imaging, who developed simultaneous abducens and vestibulocochlear nerve symptoms and subsequently improved after blood pressure control treatment. To our knowledge, this is the first report of such a vascular disorder resulting in simultaneous symptoms of the abducens and vestibulocochlear nerves. This study highlights that such a vascular anomaly should be considered when cranial nerve symptom is encountered, especially when multiple cranial nerves involved. Meanwhile, radiological evalurrrrrrrrrrrrrrrrrrration of such neurovascular conflict using three-dimensional constructive interference in steady-state imaging is recommended.

Vestibular paroxysmia caused by contralateral tortuous vertebral artery

“…Grigoryan et al [ 7 ] reported a case with hemifacial spasm which was resulted from compression of the facial nerve by the contralateral tortuous vertebral artery. Zang et al [ 8 ] reported a case of simultaneous abducens and vestibulocochlear nerve symptoms related to vertebrobasilar dolichoectasia. Considering the limited space within the posterior fossa, the successive occurrence, although MVD had been performed 3 years prior to the onset of VP, of abducens nerve dysfunction, hemifacial spasm and VP is closely related to NVCC by the contralateral tortuous vertebral artery.…”