Figure 3: CT angiography images at presentation: a long segmentary occlusion of the right common carotid artery. The blue arrow shows the right CCA, the red arrow shows the left CCA. In picture a, b and c there is a complete occlusion of the right CCA. Picture d shows a partial filling of the right CCA, just before the bifurcation. Picture e shows a complete filling of the right CCA/ICA at the level of the bifurcation.