[2][3] Lacerations require greater physical force to cause than contusions,[1] but the two types of injury are grouped together in the ICD-9 and ICD-10 classification systems.

[2] The level of consciousness decreases as the laceration bleeds and blood begins to build up within the skull.

[2] Cerebral lacerations usually accompany other brain injuries and are often found with skull fractures on both sides of the head.

[1] When associated with diffuse axonal injury, the corpus callosum and the brain stem are common locations for laceration.

[1] A cerebral laceration with large amounts of blood apparent on a CT scan is an indicator of poor prognosis.