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1病例报告患者男,20岁。因“头晕2个月,加重2天”致卫生所就诊。查体:心、肺、腹及脑神经检查未见异常;四肢肌力、肌张力正常。生理反射存在,病理反射未引出;共济运动未见异常。给予对症治疗,效果欠佳,遂转入上级医院进一步诊治。头颅MRI检查示:第四脑室后方,左侧小脑半球可见类圆形等T2信号影,边界
1 case report patient male, 20 years old. Because of “dizzy 2 months, increase 2 days ” to the clinic. Examination: heart, lung, abdomen and cranial nerve examination showed no abnormalities; limb muscle strength, muscle tone normal. Physiological reflex exists, the pathological reflex did not lead to; Give symptomatic treatment, the effect is not good, then transferred to the higher hospital for further diagnosis and treatment. Head MRI examination showed: behind the fourth ventricle, the left cerebellar hemispheres can be seen such as T2-like circular signal shadow, the border