Conclusions the repair of CSF leak through transnasal extracranial approach can obtain better therapeutic results, especially through intranasal endoscopy.

结论脑脊液鼻漏颅外进路修补疗效良好，特别是经鼻内窥镜修补。

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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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