Methods To puncture from inferior nasal meatus and canine fossa with a nasal endoscopic needle, then, to cut away the pathological tissue of maxillary sinus under the endoscopic observation.

• 方法:鼻窦镜穿刺套管针分别从下鼻道、尖牙窝穿刺,在鼻内窥镜直视下切除上颌窦病变;对上颌窦病变较严重者循柯-陆氏手术进路开放上颌窦自然窦口,以利引流。