skull fracture is a traumatic brain injury caused by a strong impact that causes a skull injury in the form of a longitudinal crack, compression, depression, or comminuted fracture. Treatment of a skull fracture depends on whether the fracture is simple or complex, and whether there is an accompanying intracranial hematoma.

Acute subdural hematoma is a blood clot that forms under the dura mater within 72 hours of injury. Treatment of acute subdural hematoma requires aggressive treatment, sometimes requiring emergency surgery because the disease has a high mortality rate and can leave serious sequelae.