Figure 2. CT of the cervical spine at initial presentation showing (A) increased atlantodental interval (white arrow) and spontaneous fusion of the axis and C3 (white star), (B) osteoarthritic change with bony spur around the dens (white long arrow), and (C) the bony bridge between the posterior arch and the superior facet of the atlas on the right side (complete "ponticulus posticus", white arrow).
