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；
2
Results: Most of the lacrimal fossa (85. 60%) consist of lacrimal and maxillary bones; 0nly a few (14.40%) lacrimal bone or maxillary bone.
结果：泪囊窝多数(85.60%)由泪骨与上颌骨构成，少数(14.40%)由泪骨或上颌骨构成。
3
The mass extends into the inferior orbital sinus, superior maxillary sinus, and the pterygopalatine fossa.