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；
Conclusion ct scanning, biopsy puncture and irrigation of the maxillary sinus is very valuable for diagnosis.
结论术前CT及活检、上颌窦穿刺对诊断有较大价值，确诊依靠术中肉眼观察及术后病理检查。
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