Which type of hematoma is a result of torn bridging meningeal veins?

A subdural hematoma occurs when there is bleeding between the dura mater and the arachnoid layer of the meninges, typically as a result of torn bridging veins. These bridging veins are responsible for draining blood from the surface of the brain to the major venous sinuses, and they can be easily torn due to trauma, such as a fall or a sudden jolt to the head. When these veins are torn, blood accumulates in the subdural space, leading to the formation of a hematoma.

This type of hematoma can occur either acutely or chronically, depending on the speed of blood accumulation and the age of the injury. Patients may present with various neurological symptoms, which can sometimes develop slowly over time, making diagnosis challenging. Understanding the mechanism of injury and the typical locations for hematomas aids in diagnosing and planning appropriate interventions in trauma cases.