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.
结论原发性空蝶鞍综合征具有典型的MR I表现，MR I可清晰显示空蝶鞍，MR I应作为原发性空蝶鞍综合征的首选影像学检查方法。
Conclusion PESS has typical MR manifestations that show empty sella clearly. MRI should be regarded as the best way to diagnose PESS.
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