Multiple types exist: linear, comminuted, depressed and contrecoup.
Linear type: most common and usually the result of blunt trauma.
Basilar skull fracture are usually liner and most often involve the temporal bone.
Basilar skull fracture associated with raccoon eyes with blood collecting in the orbits, Battle’s sign with blood collecting behind the ears, blood in the sinuses and CSF leakage through the nose and ears.
Comminuted type lesions occur when the skull is fractured in several pieces.
Comminuted fractures can lead to brain laceration.
Depressed skull fractures occur when the bone is depressed inward causing pressure to the brain.
Contrecoup fractures occur on the side opposite of the skull impact.
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thank you