Malignant Middle Cerebral Artery Infarction Secondary to Traumatic Bilateral Internal Carotid Artery Dissection. A Case Report.

Traumatic bilateral dissection of the carotid arteries is a rare condition with potentially life-threatening complications. The case of a 57-year-old male patient with acute onset left sided hemiparesis, twelve hours after a blunt head injury, caused by a horse kick, is reported. A cerebral CT scan revealed right middle cerebral artery (MCA) territory infarction. Based on Duplex ultrasound and Angio CT scan findings, a diagnosis of bilateral ICA dissection was established. Despite antithrombotic treatment, the patient presented with a progressive worsening of his neurological status. The control CT scan evidenced malignant right MCA territory infarction that required decompressive craniotomy. The patient was discharged with significant neurological deficits. Together with this case, the aetiologies, clinical manifestations, diagnostic and therapeutical options and outcome of carotid artery dissection are discussed.