MRI Features of Intracranial Hemangioblastoma

Objective:To study the value of MRI in the diagnosis of intracranial hemangioblastoma.Methods:The clinical and MRI data of 21 patients with surgery and pathology proved hemangioblastoma were reviewed and analyzed retrospectively.Results:Of these 21 cases,tumors located at cerebellar hemisphere (n=9),vermis (n=7),pons and brain stem (n=3) and cerebral hemisphere (n=2).The MRI findings were cystic tumors (n=14,66.7%) mainly appeared as cystic lesion with a small intra-mural nodule and the nodule enhanced markedly after contrast administration;simple cystic tumor (n=2,9.5%) appeared as a cystic lesion without intramural nodule and enhancement as well;solid lesion (n=5,23.8%) which showed solid mass with prominent intra-or peri-tumoral flow void blood vessels,and the tumor enhanced markedly and homogeneously.Conclusion:Hemangioblastooma had certain characteristic MRI features,and MRI plays an important role in the diagnosis of intracranial hemangioblastoma.