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在颅内肿瘤中脑室内肿瘤并不少见,由于肿瘤在脑室内呈活瓣作用,间歇性阻碍脑脊液循环,造成间断的颅内压增高。急性颅内压增高,可发生脑干移位及脑疝,引起病人突然死亡。况且脑室内肿瘤在疾病过程中的定位体征很少,脑电图、脑超声波及脑血管造影常常不能发现肿瘤所在,同位素脑扫描和电子计算机 X 线断层扫描(CT)虽对诊断有帮助,但国内尚未普及。目前可靠的诊断方法仍是脑室造影,这是具有一定危险性的创伤性诊断方法。
Intracranial tumors in the intraventricular tumors is not uncommon, because the tumor was in the ventricular valve was the role of intercourse, intermittently blocked the cerebrospinal fluid circulation, resulting in intermittent increased intracranial pressure. Acute intracranial pressure increased, may occur brain stem shift and hernia, causing sudden death of patients. Moreover, there are few signs and signs of intracerebral tumors in the course of the disease. Electroencephalography, cerebral ultrasonography and cerebral angiography often can not find the tumor. Isotopic brain scan and computerized tomography (CT) may be helpful in the diagnosis, but Not yet popular in China. The current reliable diagnostic method is still ventriculography, which is a certain risk of traumatic diagnosis.