Vertebrobasilar dolichoectasia (VBD) is a condition characterized by ectasia, elongation and tortuosity of the basilar artery. It may manifest clinically by compression of the cranial nerves, ischemic symptoms or intracranial bleeding.
Clinical manifestation of VBD, often asymptomatic, may vary widely from exertional headache to fatal consequences such as ischemic stroke or hemorrhage.