Fig. 2

A, B: The dura mater is opened with 2 separate incisions. C: The intraoperative image of a patient showing the intraspinal portion of the tumor is covered with an attenuated dura (black arrow). D: Debulking of the extraspinal portion and sectioning of the tumor is performed through the incision along the nerve root. The picture also shows the dura covering the intraspinal portion of the tumor (black arrow)