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