我院 1991年 9月～ 1997年 9月共收治 60岁以上的结核性脑膜炎 (结脑 )患者 4 8例 ,其中误诊 12例 ,误诊率 2 5%。现分析误诊原因如下。1　临床资料1.1　一般资料　男 10例 ,女 2例 ;年龄 60～ 80岁 ,平均 68.5岁。有肺结核史 4例。1.2　临床表现　头痛 8例 ,眩晕 6例 ,发热及 Forty-eight patients with tuberculous meningitis (tuberculous meningitis) over 60 years old were treated in our hospital from September 1991 to September 1997, of which 12 were misdiagnosed with a misdiagnosis rate of 25%. The reasons for misdiagnosis are as follows. 1 Clinical data 1.1 General Information 10 males and 2 females; aged 60 to 80 years, mean 68.5 years old. There are 4 cases of tuberculosis. 1.2 Clinical manifestations of headache in 8 cases, dizziness in 6 cases, fever and