实质性血管母细胞瘤的MRI诊断

目的探讨中枢神经系统实质性血管母细胞瘤的MRI特点及诊断价值。方法回顾性分析7例经病理证实的实质性血管母细胞瘤的MRI资料。结果 4例肿瘤位于小脑半球,1例位于小脑蚓部,颈髓及胸髓各1例。MRI表现为T1WI呈等、低信号,T2WI呈等、高信号,6例病灶内部和周围见血管流空影,增强后肿瘤呈显著强化;1例CE-MRA示肿瘤周边及内部见不规则血管影;2例髓内肿瘤均继发脊髓空洞或囊肿。结论 MRI对中枢神经系统实质性血管母细胞瘤的诊断及鉴别诊断具有临床价值。

MRI diagnosis of solid hemangioblastoma

Objective To evaluate the characteristic appearance and diagnostic value of solid hemangioblastoma on MR imaging.Methods MR imaging of 7 patients with solid hemangioblastoma confirmed surgically and pathologically were retrospectively reviewed.Results 4 cases of solid hemangioblastoma were located in hemisphere cerebellum,1 case in vermis cerebelli,1 case in cervical spinal cord,and 1 case in thoracic spinal cord.The tumors were shown as isointensity or hypointensity on T1 weighted images,hyperintensity or isointensity on T2 weighted images and showed marked enhancement.It can be seen the blood vessel flow-void-sign within and around the masses in 6 cases.CE-MRA in 1 case showed multiple thickening irregular arteries within or arround the tumors.2 cases in spinal cord were associated with syringes or cysts.Conclusion MR plays an important role for diagnosis and differential diagnosis of solid hemangioblastoma.