Microsurgical Anatomy of the Third Ventricle
The third ventricle is located in the centre of the head, below the corpus callosum and the body of the lateral ventricle, above the sella turcica, pituitary gland and midbrain and between the cerebral hemispheres, thalami and hypothalami. It is intimately related to the circle of Willis and its branches, and the great vein of Galen and its tributaries. Tumours in the region of the third ventricle are among the most difficult to expose and remove. Twenty-five cadaveric brains were examined in detail to evaluate the surgically important relationships of the walls of the third ventricle (1, 2).
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