In microneurosurgery operation via pterional approach,operator can find the tumor in sellar fossa and scratch it controlled by endoscope.

• 颅咽管瘤经翼点入路手术中三脑室底的一部分容易残留,神经内镜利用肿瘤组织与下丘脑组织色泽上的变化而发现是否有残余肿瘤。