Method:40 cases who had sinusitis and/or nasal polyps were treated cavity and patency of the maxillary sinus ostium were observed postoperatively.

• 方法:在40例慢性鼻窦炎患者FESS中,对病变中鼻甲适当处理,并术后观察中鼻甲、筛窦术腔及上颌窦口开放情况。