Method:Three cases of cerebrospinal rhinorrhea caused by transsphenoidal meningoencephaloceles were managed by transnasal endoscopic surgery.

• 方法:鼻内镜下切除经蝶脑膜脑膨出3例,并以肌肉、筋膜、人工硬膜等填塞致脑脊液鼻漏的颅底缺损部位。