| ventriculostomy | Surgical creation of an opening in a cerebral ventricle. (12 Dec 1998) |
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| third ventriculostomy | An operation to establish an opening from the third ventricle to the prechiasmal and interpeduncular cisterns (Stookey-Scarff operation) or from the third ventricle to the interpeduncular cistern (Dandy operation). (05 Mar 2000) |
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