CT and MRI diagnosis of intracranial solid hemangioblastoma

Objective: To study CT and MRI features of intracranial solid hemangioblastoma and to improve the diagnosis ability for this disease.Methods: The imaging data of CT and MRI and clinical information of 11 cases with intracranial solid hemangioblastoma which were proved operatively and pathologically were analysized respectiuely.All of cases were examined by pre and post-contrast both CT and MRI scanning.Results:The tumors had different size and shape but all tumors were mainly round or oval in shape.The tumors were located in cevebral hemisphere in 5 cases(3 cases in frontal lobe,1 cases in pariental lobe,1 cases in temporal lobe).The tumors were located in the posterior cranial fossa in 6 cases(3 cases in cerebellum hemisphere,1 case in the vermis of cerebellum,1 case in dorsi-medulla and 1 case in the area of left cerebellum pontine area).The tumors showed iso-or slightly hyperdensity on CT plain scan,appeared as iso or hypointensity on T1WI,slightly hyperintensity or hyperintensity on T2WI.The blood vessel flow-void-signal was found,intra-or peri-lesion in 9 cases.The tumors were enhanced remarkable after injecting contrast medium.Conclusions: CT and MRI findings of intracranial solid hemangioblastomas are characteristic.CT and MRI examination plays an important role in diagnosing of intracranial solid hemangioblastomas.