If you decided to take a cervical spine film series, the AP and Lateral films are available for your review in Figures 1a and 1b. Because the AP view for this patient did not show any findings, another AP view from a similar case has been provided in order to visualize a specific sign.

Figure 1a. AP View

Figure 1b. Lateral View.

Question 3: Based on the history, examination and reviewing the cervical spine films provided, what is the diagnosis?