Relationships of sphenoid sinus pneumatization with internal carotid artery characteristics
Fig 2
An intersphenoid sinus septum covering the paraclival internal carotid artery (asterisk) and entering that artery (arrow) in a patient with postsellar pneumatization, as revealed by preoperative paranasal sinus computed tomography (A) and during endoscopic endonasal transsphenoidal surgery (B).