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Superior Dissection of Deep Cerebral Structures

Surgical Correlation


Superior dissection of deep cerebral structures. The body of the corpus callosum has been removed.  On the right side, the lateral ventricle has been opened to reveal the caudate nucleus along its inner curvature. The head of the caudate nucleus is separated from the putamen by the anterior limb of the internal capsule. The external capsule separates the putamen from the claustrum, which is separated from the insula by the extreme capsule. The insula is a portion of the cerebral cortex located deep within the lateral fissure. Medially, the thalamus is located adjacent to the third ventricle. The columns of the fornices are visible as they descend posterior to the anterior commissure toward the mammillary bodies. (Image courtesy of AL Rhoton, Jr.)