“散发性脑炎”(或称非特异性脑炎)是60年代末开始国内各地出现的一组以急性或亚急性发病的“脑炎”,至今已发表有关文章200篇左右,2万多例。对其发病经过、临床症状、分型、治疗预后以及病理、病因等均进行了大量研究,目前已可认定在“散发性脑炎”这一名称下,实际已含了病毒性脑炎和急性脱髓鞘病两类性质完全不同的疾病。1982年在重庆召开的全国 “Sporadic encephalitis” (or nonspecific encephalitis) is a group of “encephalitis” with acute or subacute onset in various parts of the country which began in the late 1960s. So far, about 200 articles have been published and more than 20,000 cases have been published . A large number of studies have been conducted on its pathogenesis, clinical symptoms, classification, treatment prognosis, pathology and etiology. At present, the name encephalitis really contains viral encephalitis and acute Demyelinating disease two completely different nature of the disease. National held in Chongqing in 1982