小脑血管母细胞瘤的MRI表现及其病理探讨  

MRI features and pathological character of cerebellar hemangioblastoma

作　　者：董冰[1] 王长彬[2] 

机构地区：[1]济南市第四人民医院,山东济南250031 [2]山东省交通医院,山东济南250031

出　　处：《医学影像学杂志》2012年第11期1803-1805,共3页Journal of Medical Imaging

摘　　要：目的分析小脑血管母细胞瘤的MRI表现与病理特点,探讨二者之间的关系。方法回顾性分析经手术病理证实的32例小脑血管母细胞瘤,探讨其MRI表现和病理特点。结果 MRI表现大囊小结节型21例,实质型9例,囊性型2例.T1WI上肿瘤囊性部分呈均一低信号,实性部分或瘤结节呈稍低或等信号;T2WI及FLAIR上肿瘤囊性部分呈均一高信号,实性部分或瘤结节呈稍高信号;增强后实性部分或瘤结节明显强化。病理表现实性部分或瘤结节主要由基质细胞构成,囊性部分主要由毛细血管网构成。结论小脑血管母细胞瘤具有典型的MRI表现,且与其病理基础密切相关。MRI是诊断小脑血管母细胞瘤的有效检查方法。Objective To analyze the relationship between MRI findings and pathological character in the cerebellar he- mangioblastoma. Methods We retrospectively analyzed 32 cases of cerebellar hemangioblastoma, which were confirmed pathologically to study their MRI findings and pathological character. Results 21 cases were large cystic with small nodule type, 9 cases were solid mass type, and 2 cases were purely cystic type. The cystic part of tumor showed low signal inten- sity, and the solid part or nodule showed slightly low signal intensity or isointensity on T~ WI. On T2WI and FLAIR, the cystic part showed high intensity, and the solid part or the nodule displayed slightly high signal intensity. The nodules or the sc~]id part of the tumor could be significantly enhanced. The nodules or the solid part of the tumor were composed of in- terstitial cells, while, the cystic part were mainly constituted by capillary network. Conclusion The MRI findings of he- mangioblastoma are characteristics, which are closely related to its pathology. MRI is the effective inspection method for diognosis of cerebellar hemangioblastoma.

关 键 词：小脑 小脑血管母细胞瘤 磁共振成像 病理学 

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]