An 18-year-old man is admitted to the emergency room following a motorcycle accident. He is alert and fully oriented, but witnesses to the accident report an interval of unresponsiveness following the injury. Skull films disclose a fracture of the left temporal bone. Following x-ray, the patient suddenly loses consciousness and dilation of the left pupil is noted. This patient should be considered to have
Ruptured berry aneurysm
Acute subdural hematoma
Epidural hematoma
Intraabdominal hemorrhage
Ruptured arteriovenous malformation
Epidural hematoma