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Dejerine in 1892 described specific symptoms resulting from a lesion to the corpus callosum that caused alexia without agraphia. The patient had a lesion in the left occipital lobe, blocking sight in the right visual field , and in the splenium of the corpus callosum. Dejerine interpreted this case as a disconnection of the speech area in the ...
Lesions typically are found in the white matter of brains injured by DAI; these lesions vary in size from about 1–15 mm and are distributed in a characteristic pattern. [9] DAI most commonly affects white matter in areas including the brain stem, the corpus callosum, and the cerebral hemispheres.
On either side of the corpus callosum, the fibers radiate in the white matter and pass to the various parts of the cerebral cortex; those curving forward from the genu into the frontal lobes constitute the forceps minor (also forceps anterior) and those curving backward from the splenium into the occipital lobes, the forceps major (also forceps ...
The splenium of the corpus callosum is the posterior part of the corpus callosum, a major white matter structure connecting the two cerebral hemispheres. On MRI, the boomerang sign appears as a boomerang-shaped hyperintense area on DWI.
The corpus callosum is a structure in the brain along the longitudinal fissure that facilitates much of the communication between the two hemispheres. This structure is composed of white matter: millions of axons that have their dendrites and terminal boutons projecting in both the right and left
The corpus callosum is essential to the communication between the two hemispheres. [2] A recent study of individuals with agenesis of the corpus callosum suggests that the corpus callosum plays a vital role in problem solving strategies, verbal processing speed, and executive performance. Specifically, the absence of a fully developed corpus ...
MBD can be told apart from other neural diseases due to the symmetry of the lesions in the corpus callosum as well as the fact that these lesions don't affect the upper and lower edges. [4] There are two clinical subtypes of MBD. In Type A, stupor and coma predominate. Radiological imaging shows involvement of the entire corpus callosum.
Agenesis of the corpus callosum (ACC) is a rare birth defect in which there is a complete or partial absence of the corpus callosum. It occurs when the development of the corpus callosum, the band of white matter connecting the two hemispheres in the brain , in the embryo is disrupted.