Generally associated with blunt trauma to the temporal or temporoparietal region
There is a high incidence of associated skull fractures (>75%) and additional cerebral injuries (intraparenchymal hemorrhage, cerebral contusion, contrecoup injuries, subdural hematoma, subarachnoid hemorrhage)
Epidural hemorrhage
Intra-axial
Subdural empyema
Hemorrhagic stroke 
Epidural abscess 
Traumatic intracerebral hemorrhage
Post-lumbar puncture headache
Extra-axial