​Pathology - Epidural Hematoma and Subdural Hematoma

​Pathology - Epidural Hematoma and Subdural Hematoma 
Epidural hematoma is typically the result of the rupture of the middle meningeal artery, middle meningeal vein, or dural sinus, generally due to a skull fracture.
Subdural hematoma is the result of the rupture of bridge veins situated between the cerebrum and venous sinuses in the dura, typically caused by head trauma.

Epidural hematoma: Blood buildup between the dura mater and the skull causing compression on the brain.
Subdural hematoma is the accumulation of blood between the dura mater and arachnoid membrane. The bleeding is self-limited, but the hematoma might expand due to osmotic water movement. Resolution may occur with the formation of granulation tissue, leading to a chronic subdural hematoma.

Epidural anesthesia leads to unconsciousness, a clear period of awareness, headache, changes in mental function, seizures, specific neurological impairments, and ultimately a state of unconsciousness. Imaging findings: Head CT reveals a biconcave disk that does not extend across suture lines.
Subdural symptoms include headache, altered mental status, and evidence of cerebral compression. These clinical manifestations develop gradually, typically emerging hours to weeks after the injury. Imaging: Head CT reveals a crescent-shaped disk that extends across suture lines.

Treatment.
Surgically draining blood and correcting coagulopathy.