Fig. 2From: Extradural anterior clinoidectomy in surgical management of clinoidal meningiomasa–d Preoperative and postoperative helical bone window CT scan after right extradural anterior clinoidectomy for ACM patient. a, b Preoperative axial and coronal view, respectively. c, d Postoperative axial and coronal view showing the extent of bone drilling involving the right ACP, the optic canal roof, and the optic strutBack to article page