[Traumatic intracranial aneurysm secondary to a bullet wound. Clinical case and a review of the literature]

Traumatic intracranial aneurysms (AICT) are rare and are associated with high morbidity and mortality. AICT are the result of head injuries caused by accidents, explosions, and gunfire. The case is reported here of a 28 year old man who was admitted to our hospital after suffering a penetrating head injury caused by a bullet. Radiographic studies showed interhemispheric subarachnoid haemorrhage and a likely AICT image that initially went unnoticed. One week later he underwent a cerebral angiography which showed a bilateral vasospasm of the terminal portion of the internal carotid and the appearance of a 2mm fusiform AICT at the orbit-frontal branch of the anterior cerebral artery. This was surgically treated after an aneurismal growth of 3.4mm and failure of the endovascular treatment. The patient showed a favourable outcome after surgery.