Fig. 3From: Opinion: leading position of ultrasound in decision algorithm for small papillary thyroid carcinomaUS assessment of PTC extra thyroid extension (ETE). Axial US scan, grey scale (A), colour Doppler (B, C), MicroVascular Imaging MVI (D) of right lobe PTC. Contour bulging is shown (arrow, A), neovasculature (arrow) is seen running on the capsula and increases sensitivity of ETE diagnosis (B). In case of anterior abutment without disruption (C, D), Doppler US discloses vessel (arrow) running along the, while MVI depicts more subtle capsular vessels (arrows)Back to article page