Preoperative Considerations Meningiomas accounts for 77% of all non-cancerous intradural, extramedullary tumors of the craniocervical junction. The foramen magnum (FM) region is a complex surgical area. Tumors may develop intradurally or extradurally and may represent a surgical challenge. Several classification…
Preoperative Considerations Vestibular schwannomas (VSs) or acoustic neuromas arise from the Schwann cells forming the sheath (covering) of the vestibulocochlear nerve. Most of these tumors arise from the superior division of the vestibular nerve (located in the internal auditory canal),…
In this chapter we will introduce the anatomy and some key steps for the three most relevant approaches to the temporal bone for the neurosurgeon: the subtemporal or middle fossa approach, the translabyrinthine and the transcochlear approach. Middle Fossa or…
Indications Subfrontal approaches are mainly used to access the floor of the anterior cranial fossa, anterior midline parasellar structures, like the tuberculum sellae, anterior communicating artery, optic chiasm, posterior orbit and orbital apex. The unilateral subfrontal approach can be adequate…