a-c: Plain Radiographs of the cervical spine. Antero-posterior-, lateral- and oblique-view radiographs of the cervical spine: A vertical gap of the C5 arch is seen on the antero-posterior-view radiograph (a). On lateral-view (b) slightly incongruent articular pillars of C5 are noted. On an oblique-view radiograph of the right side (c) an enlarged and elongated right C4-C5 neuroforamen with absence of the right C5 pedicle is seen. The opposite lamina projects through this space (arrow). There is also dorsal displacement of the articular pillar (arrowhead).
Guggenberger et al. BMC Medical Imaging 2010 10:25 doi:10.1186/1471-2342-10-25