It often grows through the nasal choana into the nasopharynx.
常常可以通过后鼻孔累及鼻咽部。
Antralchoanal polyps present as mucoid masses originating at the maxillary antrum extending through a sinus ostium to the choana.
上颌窦后鼻孔息肉表现为起源于上颌窦的粘液样肿块，并通过上颌窦口延伸至后鼻孔。
The inspection could not be finished because of stricture of unilateral choana and nasopharynx caused by deflection of nasal septum in cases, and bilateral rhinostenosis in .
例因鼻中隔偏曲导致一侧后鼻孔和鼻咽部无法检查，例因双侧鼻腔狭窄无法检查，其余9例均可检查。
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