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In head injury, a coup injury occurs under the site of impact with an object, and a contrecoup injury occurs on the side opposite the area that was hit. [1] Coup and contrecoup injuries are associated with cerebral contusions, [2] a type of traumatic brain injury in which the brain is bruised. Coup and contrecoup injuries can occur individually ...
In coup injuries, the brain is injured directly under the area of impact, while in contrecoup injuries it is injured on the side opposite the impact. Contusions occur primarily in the cortical tissue, especially under the site of impact or in areas of the brain located near sharp ridges on the inside of the skull.
Damage may occur directly under the site of impact, or it may occur on the side opposite the impact (coup and contrecoup injury, respectively). [67] When a moving object impacts the stationary head, coup injuries are typical, [69] while contrecoup injuries are usually produced when the moving head strikes a stationary object. [70]
A coup injury occurs under the site of impact with an object, and a contrecoup injury occurs on the side opposite the area that was hit. Brain injuries can result from a number of conditions, including: [22] Trauma; multiple traumatic injuries can lead to chronic traumatic encephalopathy.
While impact on the brain at the same site of injury to the skull is the coup effect. If the impact causes the head to move, the injury may be worsened, because the brain may ricochet inside the skull causing additional impacts, or the brain may stay relatively still (due to inertia) but be hit by the moving skull (both are contrecoup injuries).
Contusions are more commonly seen in the brain parenchyma near base of the skull such as inferior frontal lobes and temporal lobes as a result of Coup contrecoup injury. Those with parenchymal contusion would require frequent follow-up imaging because such contusions may grow large enough to become hemorrhage and exerts significant mass effect ...
A coup contrecoup injury occurs as the brain is accelerated into the cranium as the head and neck hyperextend, and is then accelerated into the other side as the head and neck rebound to hyper-flexion or neutral position. [citation needed] "Volunteer studies of experimental, low-velocity rear-end collisions have shown a percentage of subjects ...
Diffuse axonal injury (DAI) is a brain injury in which scattered lesions occur over a widespread area in white matter tracts as well as grey matter. [1] [2] [3] [4 ...