Skull Base Surgery of the Posterior Fossa

127

Fig. 9.7 (continued) The tumor is exposed via a left pos-
terior interhemi spheric approach (h), and the tentorium is
cut (i). After internal debulking of the tumor (j), the vein

of Galen is exposed (k). The tumor is peeled from the

deep venous system (l), and subtotal resection of the

tumor is performed

9 Tentorial Meningiomas