Abstract: Vertebrobasilar dolichiectasia (VBD) is a rare and varied cerebrovascular disease that is still in exploring. VBD is a clinical symptom caused by congenital development, acquired factors or two factors acting on the intracranial segment of vertebral artery and/or basilar artery, resulting in significant ectasia, elongation, tortuosity, angular displacement, or compression of peripheral nerves or tissues. This paper reported 1 case of frequent dizziness, whose main clinical manifestations were posterior circulation infarction, mainly cerebellar and medulla oblongata. After strict examination, the patient was diagnosed as VBD, and the relevant literature was reviewed.

Key words: vertebrobasilar dolichiectasia, ischemic stroke, case report