Figure 5.

69-year-old man presented with fever of 5 months duration. His erythrocyte sedimentation rate was >100 mm and contrast-enhanced computed tomography chest, and abdomen was reported as normal. Coronal (b) and transaxial (d) PET/computed tomography images of thorax reveal increased fluorodeoxyglucose (FDG) uptake in walls of ascending thoracic aorta (thin arrow) (maximum standardized uptake value = 4). Also noted was increased FDG uptake in right hilar node (bold arrow) which was considered to be reactive. A diagnosis of large vessel vasculitis (aortoarteritis) was made, and patient responded to corticosteroids