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FIGURE 3. CT (left), 18F-FDG PET (middle), and fused PET/CT (right) images of coronal (upper panel) and sagittal (lower panel) view from 75-y-old man, diagnosed with a right carotid territory stroke 1 mo earlier, with a nearly total occlusion of right common and internal carotid artery and 70% luminal stenosis of left common carotid artery on angiogram. Calcifications are seen in the neck bilaterally, whereas the most intense 18F-FDG uptake was demonstrated over the right carotid artery region (arrows). Highly inflammatory right carotid artery plaque could be the cause of this patient's presenting symptoms.
