98例散发性脑炎,半数以上为学龄前儿童,临床表现以发热、头痛、不同程度的意识障碍、抽搐和肢体瘫痪等为主,约3/5病例脑脊液异常,90%脑电图异常,以θ波、δ波占优势,采用大剂量皮质激素及脱水剂治疗,痊愈和好转者占85.7%,病死率为7.1%。复习文献并结合本组病例,建议将本病分为弥漫型、局灶型和类脑瘤型,以利诊断、治疗和判断预后。 98 cases of encephalitis, more than half of preschool children, clinical manifestations of fever, headache, varying degrees of disturbance of consciousness, convulsions and limb paralysis, etc., about 3/5 cases of cerebrospinal fluid abnormalities, 90% EEG abnormalities, To θ wave, δ wave dominant, the use of high-dose corticosteroids and dehydrating agent treatment, cure and improvement accounted for 85.7%, the case fatality rate was 7.1%. Review the literature and combined with this group of patients, it is recommended that the disease is divided into diffuse, focal and brain tumor type, in order to facilitate the diagnosis, treatment and prognosis.