Glioma is the most common type of primary intracranial tumors in human.It developed from astrocytoma, oligodendroglioma, ependymoma, which were induced by neural ectoblast.

• 脑胶质瘤是由神经外胚叶衍化而来的胶质细胞即星形胶质细胞、少枝胶质细胞和室管膜胶质细胞等发生的肿瘤，是颅内最常见的恶性肿瘤。