长期应用肾上腺皮质激素类药物可导致多种紊乱和并发症。近期我们遇 1例因长期服用强的松而诱发肺炎衣原体脑炎患者 ,报告如下。1　病历摘要患者女 ,4 6岁。主因发热 ,头痛 6天 ,伴呕吐、意识模糊 2天入院。既往面部红斑反复发作 2 5年 ,疑为红斑狼疮 ,但未确诊 ,因惧怕病情恶 Long-term use of adrenal cortical hormone drugs can lead to a variety of disorders and complications. Recently, we encountered a case of Chlamydia pneumoniae encephalitis induced by long-term use of prednisone, the report is as follows. 1 patient summary Female patient, 4 6 years old. Mainly due to fever, headache for 6 days, with vomiting, confusion 2 days admission. Past facial erythema repeated attack 25 years, suspected lupus, but not diagnosed, because of fear of illness evil