MRI诊断小脑蚓部肿瘤  

MRI diagnosis of cerebellar vermis tumors

作　　者：符有文[1] 罗泽斌[1] 

机构地区：[1]广东医学院附属医院放射科,广东湛江524001

出　　处：《中国医学影像技术》2005年第8期1199-1201,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的分析小脑蚓部肿瘤的MRI特点及诊断价值。方法回顾性分析经手术病理证实49例小脑蚓部肿瘤的MRI表现,所有病例均行横、冠、矢状面三维的MR平扫及增强扫描。结果49例病例中包括髓母细胞瘤20例,星形细胞瘤12例,血管母细胞瘤9例,转移瘤4例,室管膜瘤2例,脉络丛乳头状瘤、海绵状血管瘤各1例。MRI可准确地显示肿瘤的位置及邻近情况。小脑蚓部肿瘤大部分有特征性的MRI表现。结论MRI是检查小脑蚓部肿瘤的首选方法,对小脑蚓部肿瘤的诊断和鉴别诊断有重要的价值。Objective To analyze and evaluate MR image features of eerebellar vermis tumors. Methods MRI features for 49 cases of cerebellar vermis tumors with operative and pathologic identification were studied retrospectively. All cases underwent plain and enhanced transverse, coronal, and sagittal MR scans. Results There were 20 cases of medulloblastomas, 12 cases of astryoeytomas, 9 cases of hemangioblastomas, 4 cases of metastases, 2 cases of ependymomas, 1 case of ehorial plexus and 1 case of cavernous hemangioma among the 49 cerebellar vermis tumors, most of them had characteristics MRI appearances and could be diagnosed before operation. Conclusion MRI is a method of choice in detecting eerebellar vermis tumors, an is significantly valuable in diagnosis and differential diagnosis of eerebellar vermis tumors.

关 键 词：小脑肿瘤 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R739.41[医药卫生—诊断学]