上颌窦黏膜下囊肿的手术进路包括:自然开口进路,下鼻道进路,上颌窦根治术等。随着鼻内镜理论技术的进展,手术方法逐渐趋于保守〔1〕。我科2002年11月～2003年12月在鼻内镜下应用电切割器切除上颌窦黏膜下囊肿26例(36侧),疗效满意,报告如下。1资料与方法本组26例(36侧),右侧11例 Surgical approach to the maxillary sinus submucosal cyst include: natural opening approach, the nasal passages, maxillary sinus radical mastectomy. With the development of endoscopic theory and technology, surgical methods tend to be conservative [1]. In our department from November 2002 to December 2003 in the endoscopic sinus resection of the submucosal cyst 26 cases (36 sides), the curative effect is satisfactory, the report is as follows. 1 Materials and Methods The group of 26 patients (36 sides), right in 11 cases