[Oak]

The correct answer is A. Arteriovenous malformations are composed of complex tangles of congenitally malformed vessels that typically involve the superficial or deep cerebral hemispheres. There is a slight male predominance, and bleeding typically occurs in adolescence or young adulthood. Symptoms may be those of subarachnoid hemorrhage (headache, increased intracranial pressure) and/or seizures. Surgical resection is usually required for therapy.

Berry aneurysms (choice B) can produce both subarachnoid and parenchymal hemorrhage, but are usually centered near the base of the brain.

Bleeding from bridging veins (choice C) causes subdural hematoma.

Charcot-Bouchard aneurysms (choice D) are small, intraparenchymal aneurysms that are related to hypertension.

Rupture of the middle meningeal artery (choice E) causes epidural hematoma.