MR Diagnosis and Pathological Analysis of Cerebellar Hemangioblastoma

Objective To analyze the MR feature and pathological findings of the cerebellar hemangioblastomas so as to raise the diagnostic accuracy. Methods MR imaging and pathological features of the cerebellar hemangioblastomas in 22 cases were analyzed retrospectively. All of the patients underwent routine enhanced MR scan. Results There were 21 cases with solitary tumor and 1 case multiple tumors. A total of 22 hemangioblastomas were located intracerebellar.Among 21 solitary cases, 17 cases were large cystic with small nodule type, 2 cases were solid mass type, and 2 cases were purely cystic type. The cystic liquid exhibited the long T1 and T2 signal and nearly isointense on T2-FLAIR. The solid part or nodule showed slightly low signal on T1 WI, slightly high signal intensity on T2 WI and could be significantly enhanced. It could be appeared distortion abnormal blood vessel within and around the tumor on SWI. 1 case multiple tumors included 1 large cystic with small nodule and 2 small solid nodules type. Histopathologically, this tumor was characterized by two main components: capillary and stromal cells. Conclusion The MR findings of the cerebellar hemangioblastoma has certain features, which are closely related to its pathology. MR is the effective inspection method for cerebellar hemangioblastoma.