Carotid artery pseudoaneurysm resulting from an injury to the neck by a fouled baseball.

Objective: Blunt carotid artery injury resulting in either dissection or pseudoaneurysm is a rare entity that can result in significant morbidity and mortality if undiagnosed. Although unavoidable in certain traumatic situations such as motor vehicle collisions, direct neck trauma in sports may be preventable with the use of proper protective equipment.

Clinical Presentation: The following report documents a case of extracranial carotid artery dissection resulting from a foul ball striking the upper, lateral neck of an umpire.