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胶样囊肿占全部颅内新生物的1%.手术治疗Ⅲ脑室胶样囊肿有三种基本入路:经胼胝体入路,经皮质入路及立体定向下抽吸活检,但各有利弊.作者报告采用开颅立体定向激光显微外科经皮质入路完全切除第三脑室胶样囊肿的方法.病例总结:1984年10月至1988年2月间12例Ⅲ脑室胶样囊肿病人,其中6男6女,年龄在25～71岁间.均有间歇性或慢性脑室梗阻症状.CT非增强扫描显示7例高密度,4例等密度,1例低密度病变;使用碘剂后均有不同程度的增强,均有脑积水征.5例MRI显示脑室旁白质内的T_2驰豫时间延长,说明脑室内压增加和经室管膜吸收增强.6例经脑血管造影显示中隔静脉在汇入大脑内静脉处分离,
Colloid cysts account for 1% of all intracranial neoplasms. There are three basic approaches to surgically treating III ventricle-like cysts: transhepatic approach, transcortical approach, and stereotactic aspiration biopsy, but each has its advantages and disadvantages. A method of completely resecting the third ventricle-like cyst with a craniotomy stereotactic laser microsurgery via the cortical approach. Case summary: 12 patients with a III-compartmental colloid cyst between October 1984 and February 1988, including 6 males 6 Females, ages 25 to 71 years old, have intermittent or chronic ventricular obstruction symptoms. CT non-enhanced scans show 7 cases of high density, 4 cases of isodensity, 1 case of low-density lesions; after using iodine to varying degrees Enhanced, with signs of hydrocephalus. 5 cases of MRI showed prolongation of T2 relaxation time in periventricular white matter, indicating increased intraventricular pressure and transendothelial absorption. Six cases of transcerebral angiography showed that the septal vein was imported Separation of the veins in the brain