Fiber laryngoscope; Nasal endoscopy; Maxillary sinus cyst.

纤维喉镜；鼻内镜；上颌窦囊肿。

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Method:27 cases with simple maxillary sinus cyst were treated by nasal endoscopy in intranasal antrostomy.

方法：单纯上颌窦囊肿2 7例用鼻窥镜上颌窦鼻内开窗术切除。

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All patients complicated paranasal sinus to a greater or lesser degree. Part of patients had maxillary sinus cyst and anatomical variation such as straight middle turbinate, etc.

全部合并不同程度鼻窦炎，部分见以直形中鼻甲为主的解剖变异及上颌窦囊肿。

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All patients complicated paranasal sinus to a greater or lesser degree. Part of patients had maxillary sinus cyst and anatomical variation such as straight middle turbinate, etc.

全部合并不同程度鼻窦炎，部分见以直形中鼻甲为主的解剖变异及上颌窦囊肿。

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