ve To review the pathological changes and improvement of maxillary sinus and ethmoid sinus mucosa in patients with chronic sinusitis before and after the functional endoscopic sinus surgery.

• 目的回顾近年来文献,综述慢性鼻窦炎病人经功能性内镜鼻窦手术前后上颌窦及筛窦粘膜病变与转归。