弥漫性脑胶质瘤病是一种罕见的特殊类型的胶质瘤，约占脑胶质瘤7％，其起病隐匿，症状复杂不固定，影像学检查缺乏特异性，临床诊断困难，常与其它疾病相混淆。两年来我院对2例疑难病例做了脑活体组织学检查，证实为此病。1病例报告例1：男性，20岁，因左侧肢体活动不力3个月， Diffuse gliomatosis is a rare special type of glioma, accounting for about 7% of glioma, its onset is insidious, the symptoms are complex and not fixed, imaging studies lack specificity, clinical diagnosis is difficult, often Confused with other diseases. Two years to our hospital for 2 cases of difficult cases of brain biopsy done confirmed that the disease. Case report 1: Male, 20 years old, due to poor left limb activity for 3 months,