Abstract: Objective：To analyze the clinical features，the extent of tumor removal and the prognosis of patients of cerebellum solidcystic tumors in different age groups.Methods：The clinical datas of 68 cases of cerebellum solidcystic tumors with MRI was retrospectively analyzed.Patients younger than 18yearold or 18yearold were grouped into the adolescent group and patients older than 18yearold were grouped into the adult group.Results：The predominant pathological type of tumors was pilocytic astrocytoma（PA）（n=20，55.5%）in adolescent group，and hemangioblastoma（HB）（n=13，40.6%）in adult group（χ2=28.69，P＜0.01）.Additionally，tumor resection rate and curative rate of medulloblastoma（22.2% and 33.3%）in adult group was lower than those in adolescent group（50.5% and 44.4%）.The 100% of total tumor resection rate of PA and HB was demonstrated in adolescent group and adult group，however，tumor curative rate of PA in adolescent group was 94.7% and of HB in adult group was 81.8%.No statistical difference of occurrence rate of postoperational complications was detected in these two groups.Conclusion：The predominant pathological type of tumors was PA in adolescent group and HB in adult group.Patients with PA and HB have a high resection rate and a good prognosis.However，the total medulloblastoma resection rate of adult and adolescent patients was low and the prognosis was even worse.

Key words: cerebellum tumor, solid cystic tumor, medulloblastoma, surgery