Method 16 children with white matter encephalopathy were treated with(IVIG),and the control group was established.Serum immunoglobulin and complement C3 were detected by single direction diffusion.

• 方法：静脉注射人血丙种球蛋白治疗白质脑病16例，应用单向免疫扩散法测定血清中免疫球蛋白及补体C3。