Anatomic Study Of The Extended Endoscopic Endonasal Transsphenoidal Approach To The Cavernous Sinus

Objective:To explore the approach of endoscopic endonasal cavernous sinus via extended trans sphenoidal approach and establish the anatomic basis for endoscopic endonasal treatment. Methods:Eight fresh adult cadavers were studied bilaterally (n=16). We used0and30degree rod lens rigid endoscope in our dissections. After cadaver preparation, extended endoscopic endonasal approaches were performed to access the cavernous sinus.Results:Endoscopic expanded nasal approach can reveal the cavernous sinus structure; three ways of extended transsphenoidal approach can expore different areas; relevant anatomic landmarks are good to the anatomical localization.Conclusion:The extended endoscopic endonasal transsphenoidal approach is the best surgical approach to the cavernous sinus.