中线部位肿瘤,由于缺乏定位体征,往往容易误诊,现将误诊为结核性脑膜炎1例报告如下: 张×,男,20岁。因头痛、呕吐半年于1984年6月5日入院。患者于1984年1月始,出现前额部持续性胀痛,恶心、呕吐,无明显诱因,服止痛药可以缓解。同年3月8日,因头痛加重住当地医院诊治,住院时脑膜刺激征阳性,腰穿脑脊液压力200毫米水柱,外观淡黄色,白细胞160个/立方毫米,分类中性粒细胞40％,淋巴细胞60％,蛋白(+),糖20毫克％,氯化物600毫克％,血沉28毫米/小时,诊断为结核性脑膜炎。经抗结核、脱水降颅压等治疗后,头痛减轻、症状缓解。两周后复查腰穿,脑脊液压力160毫米水柱,外观淡黄色,白细胞24个/立方毫米,分类:中性粒细胞50％,淋巴细胞50％,可见皱缩与新鲜红细胞,蛋白(+),糖、氯化物含量正常。治疗期间两次复查腰穿,结果基本同 Midline tumor, due to the lack of physical signs, are often easily misdiagnosed, now misdiagnosed as tuberculous meningitis 1 case reported as follows: Zhang ×, male, 20 years old. Due to a headache, vomiting six months on June 5, 1984 admitted. Patients in January 1984 began, there was persistent pain in the forehead, nausea, vomiting, no obvious incentive to take painkillers can ease. March 8 the same year, due to headaches increased local hospital treatment, meningeal irritation was positive when hospitalized, lumbar puncture pressure 200 mm water column, the appearance of pale yellow, white blood cells 160 / cubic mm, classification of neutrophils 40%, lymphocytes 60%, protein (+), sugar 20 mg%, chloride 600 mg%, ESR 28 mm / h, diagnosis of tuberculous meningitis. After anti-TB, dehydration reduce intracranial pressure and other treatment, reduce headaches, relieve symptoms. Two weeks after the review of lumbar puncture, cerebrospinal fluid pressure 160 mm water column, the appearance of pale yellow, white blood cells 24 / mm3, classification: 50% of neutrophils, lymphocytes 50%, visible shrinkage and fresh red blood cells, protein (+), Sugar, chloride content is normal. During the treatment of recurrent lumbar puncture, the results are basically the same