Objective The endoscopic surgical anatomy of the cavernous sinus via the extended transsphenoidal approach was studied to establish an anatomic basis for surgical treatment.

• 结果扩大经鼻蝶手术入路可清晰显示鞍底的骨膜、硬脑膜外层、海绵窦内侧壁,及海绵窦内的颈内动脉及其分支血管、动眼神经、滑车神经、展神经及视神经等结构。