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*"Almost always" recur if incompletely excised.<ref name=pmid19609378/> | *"Almost always" recur if incompletely excised.<ref name=pmid19609378/> | ||
*Originates from maxillary sinus and extends to choana.<ref name=pmid23179936>{{cite journal |vauthors=Balikci HH, Ozkul MH, Uvacin O, Yasar H, Karakas M, Gurdal M |title=Antrochoanal polyposis: analysis of 34 cases |journal=Eur Arch Otorhinolaryngol |volume=270 |issue=5 |pages=1651–4 |date=May 2013 |pmid=23179936 |doi=10.1007/s00405-012-2274-2 |url=}}</ref> | *Originates from maxillary sinus and extends to choana.<ref name=pmid23179936>{{cite journal |vauthors=Balikci HH, Ozkul MH, Uvacin O, Yasar H, Karakas M, Gurdal M |title=Antrochoanal polyposis: analysis of 34 cases |journal=Eur Arch Otorhinolaryngol |volume=270 |issue=5 |pages=1651–4 |date=May 2013 |pmid=23179936 |doi=10.1007/s00405-012-2274-2 |url=}}</ref> | ||
===Microscopic=== | ===Microscopic=== |
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