病历摘要患者,男,22岁,无明显诱因而自觉头痛并伴有恶心、呕吐,于1987年3月18日入院。既往无癫痫史。体检:病人意识清,项强(+),双眼底视神经乳头界限不清。腰穿:脑压2.64kPa,脑脊液无色透明,蛋白0.41g/L,血糖5.8mmol/L,氯化物198mmol/L。脑电图:两侧不同步,各导可见1.5～2c/s的多形 Patient, male, 22 years old, admitted to hospital on March 18, 1987 without any obvious incentive to have a headache accompanied by nausea and vomiting. No history of epilepsy. Physical examination: patient consciousness clear, Xiang Qiang (+), binocular optic nerve head unclear. Waist wear: intracranial pressure 2.64kPa, cerebrospinal fluid was colorless and transparent, protein 0.41g / L, blood glucose 5.8mmol / L, chloride 198mmol / L. EEG: both sides are not synchronized, the guide can be seen 1.5 ~ 2c / s polymorphism