我院于1973年～1980年曾对15例鼻腔和鼻窦内翻型乳头状瘤采用冷冻手术方法治疗,并与同期另14例应用常规手术方法治疗者进行对照分析,以观察冷冻切除的治疗效果。 1.分组与治疗方法;接受治疗的病人均按随机抽样和分配的原则分成两组。两组病人均采用鼻侧切开进路。先切除中鼻甲及部分筛房,以暴露鼻腔上部及筛窦之病变。再切除部分或全部下鼻甲,并凿去部分鼻腔外侧壁,以暴露鼻腔后部及上颌窦 In our hospital from 1973 to 1980, 15 cases of inverted papilloma of nasal cavity and paranasal sinuses were treated with cryosurgery, and compared with 14 cases treated with conventional surgical methods at the same period to observe the effect of cryosurgical resection. . 1. Grouping and treatment methods; Patients who received treatment were divided into two groups according to the principle of random sampling and distribution. Both groups of patients used a nasal incision approach. First remove the middle turbinate and some screening rooms to expose the upper nasal cavity and ethmoid sinus lesions. Remove some or all of the inferior turbinate and cut away the lateral wall of the nasal cavity to expose the posterior nasal cavity and maxillary sinus