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中枢神经系统是小儿时期第二位最常发生肿瘤的部位,约占15岁以下肿瘤病的10～15%,仅次于白血病,占实质性肿瘤的首位。但与其他部位的致死性肿瘤不同,中枢神经系统肿瘤极少扩散到其他脏器,其所造成的危害生要是由于这些肿瘤侵袭并破坏邻近的活命中枢,故患者的预后既取决于肿瘤的组织学类型,也取决于部位和大小。临床上60%小儿脑瘤多源自脑底的中线结构,从而限制了安全手术的范围,故不能切除的良性肿瘤,实际上与恶性肿瘤没有什么区别。根据某神经外科中心的统计,新病例的年发生率
The central nervous system is the second most commonly occurring tumor site in childhood, accounting for about 10 to 15% of tumors under the age of 15, second only to leukemia, accounting for the first place in solid tumors. However, unlike other parts of the fatal tumors, the central nervous system tumors rarely spread to other organs, the harm they cause because these tumors invade and destroy the adjacent vital center, so the prognosis depends on the tumor tissue The type of study, also depends on the location and size. Clinically, 60% of children’s brain tumors originate from the midline structure of the brain so as to limit the scope of safe surgery. Therefore, benign tumors that can not be removed are virtually the same as malignant tumors. According to a neurosurgery center statistics, the annual incidence of new cases