SEGA is a benign,slowly growing and possible multidifferentiated tumor,and it should be differentiated from giant cell glioblastoma,gemistocytic astrocytoma and ependymoma.

• SEGA为生长缓慢的良性肿瘤,生存时间长,预后良好,可能具有多向分化潜能,病理确诊须与巨细胞性胶质母细胞瘤、肥胖细胞性星形细胞瘤和室管膜瘤等鉴别。