血管母细胞瘤的影像学诊断

目的探讨血管母细胞瘤的影像学诊断价值。资料与方法搜集经手术病理证实的中枢神经系统血管母细胞瘤36例；回顾性分析CT和MRI表现。结果病变位于后颅凹27例，大脑半球3例，脊髓8例；其中2例为小脑内多发病变，2例为小脑及颈髓并存病变。CT表现为囊性病变边缘有软组织密度结节，MRI表现为囊性信号伴边缘灰色信号结节，可见周围流空的血管信号影，结节明显强化；脊髓病变以血管信号影为主。结论CT和MRI对向管母细朐瘤均有串付串件诊断价值．MRI优于CT扫描。

Imaging Diagnosis of Hemangioblastoma

Objective To study imaging diagnostic value of hemangioblastoma. Materials and Methods CT and MRI Endings of 36 cases with hemangioblastoma of CNS proved surgically and pathologically were analyzed retrospectively. Results Lesions were located in posterior fossa ( n = 27) , hemisphere (n = 3) , spinal cord (n = 8). Multi-lesions were found in cerebellum (n =2) . Lesions were found in both cerebellum and spinal cord in 2 cases. Nodule of soft tissue density verge on cystic lesion were depicted on CT scan, cystic signal with marginal gray signal nodule and vascular flow void signal adjacent to the lesions were depicted on MR imaging, the nodules were enhanced markedly with contrast materials. In spinal cord lesions, the main sign was vascular flow-void signal. Conclusion CT and MRI are helpful in the diagnosis of hemangioblastoma. MRI is prior to CT scan.