The prognosis is better if there was a lucid interval than if the person was comatose from the time of injury. Arterial<unk> s usually progress rapidly. However, venous<unk> s, caused by a dural sinus tear, are slower. Outcomes are worse if there is more than 50 mL of blood in the hematoma before surgery. Age, pupil abnormalities, and Glasgow Coma Scale score on arrival to the emergency department also influence the prognosis. In contrast to most forms of traumatic brain injury, people with<unk>  and a Glasgow Coma Score of 15 (the highest score, indicating the best prognosis) usually have a good outcome if they receive surgery quickly.
Epidural hematoma
Subarachnoid hemorrhage
Subdural empyema
Traumatic brain injury
Brain herniation
Brain abscess
Subdural hematoma
Transient ischemic attack