Head Trauma, Penetrating
Basics
Basics
Basics
Description
Description
Penetrating injury to intracranial contents:- High-velocity penetration: Usually bullets, which cause trauma directly to brain tissue and also have a “shock-wave” injury to local surrounding brain
- Low-velocity penetration: Usually knives, picks, or other sharp objects, with direct local trauma to brain tissue
Etiology
Etiology
- Direct penetration of the skull into the intracranial cavity by foreign object:
- Direct or local damage to brain tissue
- Intracranial hemorrhage, including subdural, epidural, and intraparenchymal bleeds
- A bullet that hits the skull, ricochets off, and does not fracture the skull can still cause significant trauma to the underlying brain tissue
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