临床资料我院自1970～1985年共确诊蛛网膜下腔出血(SAH)210例,其中由于临床表现不典型初诊时诊为上感、散发性脑炎及高血压脑病各5例,急性胃炎、脑血栓形成,椎基底动脉供血不足各4例;动脉硬化性精神病及癫痫持续状态各3例;过敏性休克及一氧化碳中毒各1例.例1:女,32岁。发烧、咽痛、头痛两日,以 Clinical data In our hospital from 1970 to 1985 were diagnosed with subarachnoid hemorrhage (SAH) in 210 cases, of which due to clinical manifestations of the newly diagnosed as the first visit, sporadic encephalitis and hypertensive encephalopathy in 5 cases, acute gastritis, Cerebral thrombosis, vertebrobasilar insufficiency in 4 cases; Arteriosclerotic psychosis and status epilepticus in 3 cases each; Anaphylactic shock and carbon monoxide poisoning in 1 case.Example 1: Female, 32 years old. Fever, sore throat, headache for two days