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Injury to the Corpus Callosum

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Miranda Barrie

on 8 October 2012

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Transcript of Injury to the Corpus Callosum

By Miranda and Rylee Injury to the Corpus Callosum The Corpus Callosum is the thick band of nerve fibers that divides the cerebrum into left and right hemispheres. It connects the two hemispheres of the brain. Transferring; motor, sensory, and cognitive information between the left and right hemispheres. What is it and where is it located? Severe as well as moderate head injuries can cause traumatic lesions of the corpus callosum. The lesions can be caused by brain trauma, aneurysms of the pericallosal artery, lymphoma, inter cranial tumors, after an arteriovenous malformation has ruptured. Some types of Demyelinating diseases can also cause lesions such as; Multiple sclerosis, progressive multifocal leukoencephalopathy, and marchiafava-bignami disease. What could cause this area of the brain to be injured? What types of disability would be a result of this injury? As of now the damage is typically permanent, though within 6 months of the injury the damage can heal to a point. Sometimes nearby areas of the brain will take over the damaged areas. Is this damage permanent? You can also be born without or a partial corpus callosum, which is called agnesis of the corpus callosum(ACC). It is a rare birth defect, when the white matter(corpus callosum) doesn't develop properly. Some research has found that damage to the corpus callosum relates to dyslexia. There is also hypogenesis(partial formation), dygenesis(malformation), and hypoplasia(underdevelopment) of the corpus callosum. The symptoms appear similar to Autism and can often be misdiagnosed. Injury to the corpus callosum manifests in people by having delayed social skills, learning processes, and are sensitive to certain sensory cues. What types of therapy or surgery could be used to diminish the disability? Split-Brain is a surgery to describe the result when the corpus callosum connecting the two hemispheres of the brain is severed to some degree. It is an association of symptoms produced by disruption of or interference with the connection between the hemispheres of the brain. The surgical operation to produce this condition is called corpus callosotomy (not to be confused with colostomy) and is usually used as a last resort to treat otherwise intractable epilepsy. Interesting Fact! There isn't currently a specific treatment for injuries to the corpus callosum. Though many have responded positively to different experimental therapies, educational support, as well as specialized services.
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