Fig. 1.

Preoperative radiologic evaluation. (A) Computed tomography (CT) scan, sagittal view, showing a poorly pneumatized sphenoid sinus. (B) CT scan, axial view, showing a sphenoid septation attaching to the right internal carotid artery (ICA) protuberance. (C) Magnetic resonance (MR) scan, coronal view, showing a pituitary macroadenoma with right cavernous sinus invasion and ICA encasement. (D) MR scan, coronal view, showing a large nasopharyngeal angiofibroma requiring preoperative embolization. (E) MR scan, axial view, showing a very large chondrosarcoma warranting a combined approach for surgical resection.