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Cerebellar anatomy as applied to cerebellar microsurgical resections

DOI: 10.1590/S0004-282X2012000600011

Keywords: cerebellum, anatomy, neurosurgery.

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Abstract:

objective: to define the anatomy of dentate nucleus and cerebellar peduncles, demonstrating the surgical application of anatomic landmarks in cerebellar resections. methods: twenty cerebellar hemispheres were studied. results: the majority of dentate nucleus and cerebellar peduncles had demonstrated constant relationship to other cerebellar structures, which provided landmarks for surgical approaching. the lateral border is separated from the midline by 19.5 mm in both hemispheres. the posterior border of the cortex is separated 23.3 mm from the posterior segment of the dentate nucleus; the lateral one is separated 26 mm from the lateral border of the nucleus; and the posterior segment of the dentate nucleus is separated 25.4 mm from the posterolateral angle formed by the junction of lateral and posterior borders of cerebellar hemisphere. conclusions: microsurgical anatomy has provided important landmarks that could be applied to cerebellar surgical resections.

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