Objective To analyze the causes and the best operative methods of recurrent choanal polyp.
目的探讨后鼻孔息肉复发的原因及最佳手术方法。
Conclusion: Some choanal polyp derive from concha nasalis media, endoscopic sinus surgery is a good method for treatment.
结论：部分鼻后孔息肉发源于中鼻甲，鼻内窥镜手术是治疗的较好方法。
Conclusion: the choanal polyp may originate in the maxillary sinus, sphenoidal sinus, middle nasal concha, nasal septum and other parts, FESS is the first choice in treating it.
结论：后鼻孔息肉可源发于上颌窦、蝶窦、中鼻甲及鼻中隔等多部位，鼻内镜手术可列为治疗后鼻孔息肉的首选方法。
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