Fig. 3
From: FDG-PET/CT as a useful tool for disease activity assessment in large vessel vasculitis in childhood

Ultrasonographic evidence of vessel wall inflammation. In patient #3 initially underwent an ultrasound of several vessels, as shown in this figure of the left arteria carotis ext. Clearly echogenic thickened vessel wall, up to approx. max. 4 mm in diameter (white arrows in Fig. 5b and c) with a vessel lumen of approx. 3.6 mm (a). In B-flow and Doppler mode, a small arterial vessel (white arrowhead) can be found in the thickened wall around the right carotid artery (b and c)