手术进入第三脑室的效果和范围经过临床实践已经使用数十年。从额部和胼胝体的前部入路已获得广泛的应用。由此路虽可充分地暴露和可能根治第三脑室内肿瘤。但作为一种入路的选择、特别是肿瘤从Monro孔而不能显露时,采用经侧脑室底提起和牵开脉络膜丛与脉终膜组织及穹隆能得到最好的暴露。作者们通过临床应用此手术方法疗效很好。患者仰卧位,头屈曲略向左转。右额部中线旁骨翻开,并在额中回纵形切开皮层长4cm。切口向后并朝中线加深一直进入侧脑室。开口应该从皮层切口到连接穹隆栓的前端和后端而形 The effect and extent of surgery entering the third ventricle has been in clinical practice for decades. From the frontal and the front of the corpus callosum access has been widely used. Although this route can be fully exposed and may cure the third intraventricular tumors. However, as an approach to choice, especially when the tumor is not visible from the Monro-hole, the best exposure is obtained by lifting and retracting the choroid plexus and the retro-terminal venous tissue and vault via the ventricles. The authors have achieved good results through clinical application of this procedure. Patient supine, head flexion slightly to the left. Right forearm midline bone open, and in the forehead back length cut cortex length 4cm. Cut back and toward the midline deepening into the lateral ventricle. The opening should be shaped from the incision of the cortex to the anterior and posterior ends of the vault plug