Figure 1From: Traumatic vertebral artery dissection in an adult with brachial plexus injury and cervical spinal fracturesMRI of the cervical spine. T2-weighted image shows high signal intensity (white arrow) of the right vertebral artery. There is an intramural thrombus plus occlusion of the lumen (Grade four dissection). There is no intraluminal thrombosis.Back to article page