功能性鼻内镜手术（ＦＥＳＳ）在欧美方兴未艾，日臻完善。在国内业已广泛兴起，在其无可比拟的优越性被接受的同时，手术并发症的问题也日益受到关注。其中相当一部分与患者鼻窦（主要为筛窦和蝶窦）的解剖变异密切相关，这些变异几乎都可以通过轴位抑或冠状位ＣＴ检查准... Functional Endoscopic Surgery (FESS) in Europe and the United States in ascendant, improving. In the country has been a widespread rise in its unparalleled superiority is accepted at the same time, the issue of surgical complications are also increasingly concerned about. A significant proportion of them are closely related to anatomic variations of the sinuses (mainly the ethmoid sinus and sphenoid sinus) in patients, almost all of which can be confirmed by axial or coronal CT.