FIGURE 2.  Transaxial CT (left), ¹⁸F-FDG PET (middle), and fused PET/CT (right) images. Focal ¹⁸F-FDG uptake without significant calcifications is demonstrated in aortic arch from 50-y-old man with significant stenosis of right internal carotid artery, suggesting high level of inflammation activity within this soft plaque.