Fig. 1From: Clinical heterogeneity of low flow spinal arteriovenous fistulas; a case seriesa and b MRI of patient 1 demonstrated longitudinal extensive T2 hyperintensity from medulla to C7 spinal cord level with dilated perimedullary veins anterior to the cord at the cervical region (red arrow). c. CT angiogram demonstrated arterio-venous fistula (yellow arrow) at C1 level and the anterior dilated perimedullary veins (red arrow)Back to article page