1.病例介绍 患者,男35岁。因精神异常3年,左上肢不自主运动20天入院。入院前3年无明显诱因出现精神异常表现为好哭、傻笑、易怒、坐立不安,夜间不能睡眠。当地医院诊断为精神分裂症治疗1年半。患者出现全身乏力,动作协调困难不能书写,流涎等症状,未引起注意,继续原治疗。近20天来患者出现左上肢震颤,构音不 1. Case presentation patients, male 35 years old. 3 years due to mental disorders, left upper limb involuntary movement 20 days admission. 3 years before admission no obvious incentive to appear abnormal mental abnormalities as crying, giggle, irritability, restlessness, night can not sleep. Local hospital diagnosis of schizophrenia for 1 and a half years. Patients with generalized weakness, motor coordination difficulties can not write, salivation and other symptoms, did not pay attention to continue the original treatment. In the last 20 days, the patient appears tremor in the left upper limb and the articulation does not occur