Figure 2 :(a and b) The anteroposterior view of left and right vertebral arteriogram (Dec, 2006); (c) Lateral view of right vertebral angiogram (Dec, 2006). This spinal arteriovenous malformation was fed by the bilateral vertebral artery, mainly supplied by the anterior spinal arteries from the left vertebral artery and drained into the veins located at the dorsal side of the cervical spinal cord. Left vertebral angiography also demonstrated the right occipital cerebral arteriovenous malformation, which was fed by the right parietoccipital artery and calcarine artery and drained into the superior sagittal sinus. (d and e) 3D angiogram of the left vertebral angiogram shows the two arteriovenous malformations clearly