AIMS To establish whether abnormalities in the course of the vertebral artery occur and whether they are relevant to arterial injury associated with head and neck movements. METHODS Twenty vertebral arteries were carefully dissected at necropsy and abnormalities in course were noted, along with any other bony or cartilaginous cervical anomalies. The effect of head and neck movement on these v...

OBJECTIVE The purpose of this study is to elucidate the anatomic relationships between the uncinate process and surrounding neurovascular structures to prevent possible complications in anterior cervical surgery. METHODS Twenty-eight formalin-fixed cervical spines were removed from adult cadavers and were studied. The authors investigated the morphometric relationships between the uncinate pr...

BACKGROUND AND PURPOSE The long-term outcome of endovascular intervention compared with best medical management of patients with symptomatic vertebral artery stenosis is uncertain. We therefore compared these treatments in a randomized trial with long-term follow-up. METHODS In the international, multicenter Carotid And Vertebral Artery Transluminal Angioplasty Study, 16 patients with symptom...

213 4 Sturzenegger M, Mattle HP, Rivoir AS, Baumgartner RW: Ultrasound fi ndings in carotid artery dissection: analysis of 43 patients. Neurology 1995; 45: 691–698. 5 Zuber J, Meary E, Meder JF, Mas JL: Magnetic resonance imaging and dynamic CT scan in cervical artery dissections. Stroke 1994; 25: 576– 581. 6 Bui LN, Brant-Zawadzki M, Verghese P, Gillan G: Magnetic resonance angiography of cerv...

We report a case of unique location of an aneurysm at the atlanto-axial extradural segment of a unilateral aberrant vertebral artery. The MRI vessel wall imaging findings and possible mechanism of aneurysm formation were discussed. A 5 mm extracranial vertebral artery aneurysm located at the interlaminar space between C1 and C2 was diagnosed in a woman presenting with occipital headache. The in...