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目的通过对31例小脑血管母细胞瘤的MR表现特点的分析,探讨其诊断价值及鉴别诊断意义。方法 31例经MR平扫及增强扫描的患者,其中男13例,女18例,年龄19～43岁,平均32岁,31例小脑血管母细胞瘤均经手术和病理证实。结果 31例小脑血管母细胞瘤中,27例单发囊性,其中18例为大囊小结节,9例为大囊较大结节,瘤旁水肿较轻或无;增强扫描瘤结节呈明显强化(高信号),囊壁呈环形强化,4例为实质性,增强扫描呈明显高信号。肿瘤实质内及肿瘤旁可见迂曲的血管流空影。发生位置为19例位于右侧小脑半球,10例位于左侧小脑半球,2例位于小脑引部。结论 MR对小脑血管母细胞瘤的诊断具有较高的准确性,尤其是增强扫描对定性诊断及鉴别诊断具有重要意义。
Objective To evaluate the diagnostic value and differential diagnosis of 31 cases of cerebellar hemangioblastoma by MR imaging. Methods Totally 31 patients with MR scan and enhanced scan, including 13 males and 18 females, aged from 19 to 43 years (average 32 years old) and 31 cases of cerebellar hemangioblastomas were confirmed by operation and pathology. Results Of the 31 cases of cerebellar hemangioblastoma, 27 cases were single cystic, 18 cases were large tubercle nodules and 9 cases were large tuberosity nodules with less or no tumor edema; Was significantly enhanced (high signal), the annular wall was enhanced, 4 cases were substantial, enhanced scanning was significantly higher signal. Inside the tumor and the tumor can be seen tortuous vascular flow empty shadow. The location was 19 cases in the right cerebellar hemisphere, 10 cases in the left cerebellar hemisphere, and 2 cases in the cerebellar lead. Conclusion MR diagnosis of cerebellar hemangioblastoma with high accuracy, especially enhanced scan for qualitative diagnosis and differential diagnosis of great significance.