1　病例报告患者 ,女性 ,30岁。因恶心、呕吐 1月 ,加重伴眩晕 1周入院。既往体健 ,1月前 ,因饮食不慎出现恶心、呕吐 ,非喷射性 ,为胃内容物。无腹痛、腹泻 ,无头痛、发热。开始在某院门诊按急性胃炎治疗 ,症状略好转 ,停药后仍有呕吐。 2 0天前在另一医院住院治疗。作头颅CT 1 case report patient, female, 30 years old. Due to nausea, vomiting in January, aggravated with dizziness 1 week admission. Past physical health, a month ago, due to diet inadvertently nausea, vomiting, non-jet, as the stomach contents. No abdominal pain, diarrhea, no headache, fever. Beginning in a hospital outpatient treatment of acute gastritis, the symptoms improved slightly, still vomiting after stopping. 2 days ago in another hospital for treatment. For head CT