Resection of fourth ventricle tumors without splitting the vermis: the cerebellomedullary fissure approach.


OBJECTIVE Standard surgical practice for excision of fourth ventricle tumors entails splitting the inferior vermis, but incision of the vermis and lateral retraction on the dentate nuclei and their outflow tracts have been implicated in the development of the so-called 'cerebellar mutism syndrome'. We describe a surgical approach in which the cerebellar… (More)


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