injury to the intrapetrous or cevernous portion of the carotid artery during basal skull fracture , injury to the point of emergence of the carotid artery from the cavernous sinus as a result of shearing strains suffered at the time of injury , a direct blow to the neck or trauma to the paratonsillar area by a foreign object carried in the mouth , and stretching of the carotid artery by heperextension and lateral flexion of the neck .
C0043251
trauma
C0016542
foreign object