散发性脑炎是指病毒感染或感染后过敏反应所引起的脑实质广泛损害的一种脑炎。起病多为急性或亚急性,多无明显季节性和地区性,呈散在发生.故称散发性脑炎。我院自1961年10月至1981年1月,共收治75例,其中男性45例,女性30例;年令自14个月至60岁,但以青壮年和儿童为多,35岁以下者60例,占80％;病前有上呼吸道及肠道感染史者52例,占69.3％;临床症状中有精神障碍者37例,占49.33％,有局灶性神经系统症状体征和颅内压增高者6例,占8％,本文就上述临床症状为主而造成早期临床误诊的11例,作临床分析如下: 由于精神症状甚为突出,本组有9例早期误诊为痣病和精神分裂症,曾在精神病院治疗,以后发 Sporadic encephalitis is an encephalitis that is extensively damaged by the brain parenchyma caused by an allergic reaction to a virus infection or infection. Mostly acute or subacute onset, and more no obvious seasonal and regional, was scattered. So called sporadic encephalitis. In our hospital from October 1961 to January 1981, a total of 75 cases were admitted, including 45 males and 30 females; year from 14 months to 60 years old, but young adults and children are more than 35 years of age 60 cases, accounting for 80%; before the illness has upper respiratory tract and intestinal infection in 52 cases, accounting for 69.3%; clinical symptoms in 37 cases, mental disorders, accounting for 49.33%, with focal neurological symptoms and signs and intracranial Elevated pressure in 6 cases, accounting for 8%, the clinical symptoms of this mainly caused by early clinical misdiagnosis in 11 cases, the clinical analysis is as follows: Because the psychiatric symptoms are very prominent in this group of 9 cases misdiagnosed as early nevus disease and mental Schizophrenia, was treated in a mental hospital, later sent