“…The initial symptoms of airway obstruction include dyspnea, stridor, hoarseness, dysphagia, painful swallowing, neck pain, and neck swelling (2)(3)(4)(5)(6)(7)(8)(9). Because evaluating the size of the retropharyngeal hematoma from the outside of the body is difficult, the quickest and easiest way to diagnose this condition is to obtain a lateral cervical spine plain radiograph (10). When patients suspected of having a cervical spine injury show symptoms of airway obstruction, a lateral cervical spine plain radiograph should be promptly obtained.…”