用choanal polyp造句子，“choanal polyp”造句

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.

Some choanal polyp derive from concha nasalis media,endoscopic sinus surgery is a good method for treatment.