What type of bleeding occurs between the brain and the dura mater?

The type of bleeding that occurs between the brain and the dura mater is known as a subdural hematoma. This condition arises when there is tearing of the bridging veins, often due to a traumatic injury that causes the brain to move within the skull. The blood then collects in the space beneath the dura mater, which is the tough outer membrane covering the brain.

In contrast, epidural hematoma occurs in the space between the dura mater and the skull and is usually associated with arterial bleeding, often due to fractures of the skull. A subarachnoid hemorrhage involves bleeding in the space between the arachnoid mater and the pia mater, typically due to rupture of an aneurysm or arteriovenous malformation. Intracranial hemorrhage is a more general term that encompasses various types of bleeding within the cranial cavity but does not specifically identify the location as subdural.

Understanding the specific location and type of bleeding is crucial for diagnosis and management, as each of these conditions requires different approaches to treatment.