Fig. 2.

Preoperative (A) sagittal T1, (B) axial T2, and (C) coronal T1 magnetic resonance imaging (MRI) with gadolinium demonstrating a large left petroclival intradural chordoma. (D) Preoperative computed tomography (CT) did not demonstrate any bony involvement. (E–G) Postoperative MRI showing near-complete resection with a likely small residual in the left cavernous sinus (F, arrow). (H) Postoperative CT showing skeletonization of semicircular canals. Preoperative CT did not disclose any bony involvement.