Bilateral cervical spondylolysis.

Background: A 42-year-old man, with no significant medical history, was admitted at the emergency department following a road traffic accident. While cycling, the patient had been hit by a car, after which he briefly lost consciousness. Upon admission, he complained of severe headache and pain in his left shoulder and thorax. Physical examination revealed stable vital parameters and a Glasgow Coma Scale of 15/15. There were no neurological deficits.