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optic chiasma |
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optic chiasma [′äp·tik kī′az·mə] (neuroscience) The partial decussation of the optic nerves on the undersurface of the hypothalamus. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The tumor's location between the carotid artery, optic chiasm, pituitary gland, and cavernous sinus made en bloc resection impossible. A high-speed suction and irrigation diamond bur was used to thin the bone overlying the optic nerve from the posterior ethmoid cavity to the area of the optic chiasm. One patient (patient 4) exhibited sphenoid sinus involvement with extension into the sellar area, cavernous sinuses, and optic chiasm. |
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