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。
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。
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.
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