The coronal sections above show a defect in the inferior temporal lobe and occipital lobe, probably due to a traumatic contusion.
Contusions are usually due to movement of the brain in the skull during the trauma.
Such injuries result in a scraping of the inferior aspect of the brain over the petrous temporal and orbital surface of the frontal bones. Blunt head trauma produces contusion in the coup and contracoup position in the brain. When the brain is stationary and hit by a moving object, only a coup lesion at the point of impact is seen. This is usually seen when the head hits on the occiput. The brain hits the posterior part of the head then slides forward and backward several times.