Fig. 3. Transverse c-spine computed tomography (CT) images showing aplasia of the C1 anterior and posterior arches (red arrows) (A), aplasia of the C2 posterior arch (blue arrow) (B), and the C3 left laminar aplasia (yellow arrow) (C). A simple lateral c-spine X-ray image showing the complete absence of the post arch of the C1 and C2 spine (white arrows) (D). 3D CT-reconstruction image showing right 1st rib agenesis (white arrow) and right 2nd and 3rd rib fusion (white arrowhead) (E). 3D CT-reconstruction image showing that the right scapula migrated superiorly compared with the left, and the inferior angle of the scapular blade is at the level of the 6th rib (white arrows) (F).