血管母细胞瘤MRI诊断

目的提高对血管母细胞瘤MRI表现的认识。方法收集11例经手术病理证实的血管母细胞瘤,对其MRI表现进行回顾性分析。结果本组11例血管母细胞瘤8例发生于小脑半球或蚓部,1例位于幕上,1例位于脊髓,1例多发;11例血管母细胞瘤中13个瘤灶,10个为大囊小结节型,2个为实质型,1个为单纯囊型;大囊小结节型囊性部分T1WI、T2WI信号均高于脑脊液,结节强化明显,实质型瘤内可见血管流空信号,增强扫描有助于病变的发现和定性诊断。结论MRI及其造影增强对血管母细胞瘤的定位及定性有重要价值。

MRI diagnosis of hemangioblastoma

Objective A further understanding of MRI manif estation of hemangioblastoma.Methods The MRI findings of 11cases of hemangioblastoma ,proved by surgery and pathology,were studied retrospectively.Results Eight tumors were found in the cerebellar hemisphere or the vermis,anoth er one in the cerebra,one in the spinal cord and in one case multip le nidi were noted.Thirteen lesions were found in 11cases.Ten lesions were large cyst with small nodules;2lesions were solid mass and one was a s imple cyst.Tumors of large cysts and small nodules had higher signal t han that of cerebrospinal fluid on both T 1 WI and T 2 WI.And the nodules were apparently enhanced.In the solid hemangioblastoma flow void signal of b lood vessels was revealed.Contrast en-hancement was helpful in locating th e lesion and qualitative diagnosis o f disease.Conclusion MRI,including the pain scan and contrast enhanced scan play an important role in the diagnosis of hemangioblastoma.