蝶窦深居颅底 ,与中颅窝的重要结构关系密切 ,除其本身的气化变异多外 ,最后组筛房解剖关系亦多变 ,这些变异直接影响到术者对蝶窦与颅底、颈内动脉和视神经等结构间关系的判断 ,因此 ,蝶窦区域的手术被认为是鼻窦手术中难度最高、风险最大的手术〔1〕。现将 1989年 5月～ 2 0 Sphenoid deep skull base, and the important structure of the middle cranial fossa is closely related, in addition to its own gasification variability, the final group of the antrum anatomical relations also varied, these changes directly affect the sphenoid sinus and skull base , Internal carotid artery and optic nerve and other structures to determine the relationship between the Therefore, the sphenoid sinus surgery is considered the most difficult sinus surgery, the risk of surgery [1]. Now in May 1989 ~ 20