患者,男性,26岁,因左下肢无力1年,加重伴双下肢麻木3个月入院。入院前1年,患者无明显诱因出现左下肢无力,无腰腿痛,无双下肢感觉障碍,无大小便障碍,3个月前患者左下肢无力加重,行走不灵活,同时偶发双下肢稍麻木感,无大小便障碍,之前诊断为“神经元病”,治疗无好转,于2008年10月 Patient, male, 26 years old, with weakness in the left lower limb for 1 year and aggravated with numbness in both lower extremities for 3 months. 1 year before admission, there was no obvious incentive for patients with left lower extremity weakness, no low back pain, unresponsive lower extremity sensation and no urinate disorder. The left lower extremity became weak and aggravated three months ago while walking was slightly numb. , No urinary incontinence, previously diagnosed as “neuronal disease”, no improvement in treatment, in October 2008