Crawford和Gjerris、Klinken等人对良性小脑星形细胞瘤长期存活患者。根据其不同生存率从病理上区分为幼稚型及弥漫型。幼稚型的特点是细微纤维分布不均匀,在含有明显纤维化的梭形细胞密集区之间交织着有较为疏松的非纤维星形细胞区。在弥漫型中,胶质纤维的分布均匀,细胞小,形态一 Crawford and Gjerris, Klinken et al. have long-term survival in patients with benign cerebellar astrocytoma. According to their different survival rates from the pathological distinction of naive and diffuse. The naive type is characterized by the uneven distribution of fine fibers, which are interspersed with looser, non-fibre, stellate cell regions between densely fibrated, spindle-shaped cells. In the diffuse type, the distribution of glial fibers is uniform, the cells are small, and the morphology is one.