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目的 分析脑室肿瘤的CT和MRI特征 ,提高对各种脑室肿瘤诊断的准确率。方法 收集 2 6例经手术与病理证实的脑室多种肿瘤 :其中侧脑室 1 5例 ,三脑室 3例 ,四脑室 8例。单独作CT检查 5例 ,同时作CT和MRI检查 2 1例。根据 2 6例多种脑室肿瘤的发生部位 ,进行脑室定位分类。结果 5例中央性神经细胞瘤和 2例胶样囊肿发生于中线室间孔区 ;6例髓母细胞瘤分别发生于小脑上蚓部和四脑室顶部近中线区 ;5例室管膜瘤发生在单侧脑室 ,年龄分别为 2 8～ 36岁 ;3例室管膜瘤发生在四脑室 ,年龄分别为 7～ 1 3岁 ;2例脉络丛乳头状瘤发生侧脑室三角区 ,年龄 1 3～ 1 5岁 ;2例脑膜瘤发生在侧脑室三角区 ,年龄为 1 5～ 71岁 ,1例巨细胞型星形细胞瘤发生在右侧脑室底部 ,年龄为 30岁。结论 CT与MRI有助于对脑室肿瘤的鉴别诊断 ,结合临床资料进行综合分析 ,可提高诊断的准确率
Objective To analyze CT and MRI features of ventricular tumors and improve the accuracy of diagnosis of various ventricular tumors. Methods Twenty-six cases of multiple brain tumors confirmed by operation and pathology were collected: 15 cases of lateral ventricles, 3 cases of tricephalic ventricles, and 8 cases of quadriventricular. CT scans were performed in 5 cases alone, and CT and MRI examinations were performed in 21 cases. According to the location of 26 cases of multiple brain tumors, ventricular localization was performed. Results 5 cases of central neuroblastoma and 2 cases of colloid cysts occurred in the interventricular septum of the midline; 6 cases of medulloblastoma occurred in the upper mid-line area of the superior cerebellar vermis and the fourth ventricle; 5 cases of ependymoma In the unilateral ventricle, the age was 28 to 36 years old; 3 cases of ependymoma occurred in the fourth ventricle, aged 7 to 13 years; 2 cases of choroid plexus papilloma occurred in the lateral ventricle triangle, age 1 3 ~ 1 5 years old; 2 cases of meningiomas occur in the lateral ventricle triangle, aged from 15 to 71 years, and 1 case of giant cell astrocytoma occurs at the bottom of the right ventricle and is 30 years old. Conclusion CT and MRI are helpful for the differential diagnosis of ventricular tumors. Comprehensive analysis combined with clinical data can improve the accuracy of diagnosis.