富亮氨酸胶质瘤失活1蛋白(leucine-richglioma inactivated-1,LGI-1)抗体阳性相关脑炎是近年来才被认识的一类自身免疫性脑炎(autoimmune encephalitis,AE),此种类型脑炎较罕见,对免疫治疗敏感且有较好的预后。现将我院收治的1例病例进行报道,以望进一步丰富对本病的认识。1临床资料患者,女,48岁,因行为异常,智力下降3 m于2015年8 Leucine-rich glioma inactivated-1 (LGI-1) antibody-positive encephalitis is a type of autoimmune encephalitis (AE) that has not been recognized in recent years. Rare forms of encephalitis are immunosuppressive and have a better prognosis. A case of our hospital now reported, in order to further enrich the understanding of the disease. 1 Clinical data Patients, female, 48 years old, due to behavioral disorders, mental decline 3 m in 2015 8