1病历报告女，10岁。反复肢体无力5月余。初始症状为阵发性左上肢针刺样疼痛．向左肩背部及双上肢放射，渐重，严重时出现双上肢抽动。发病第4个月出现左上肢及右下肢无力，渐重至不能行走，左上肢不能上抬，左手不能握物。当地医院多次诊断为吉兰-巴雷综合征（Guilliain－Barr 1 medical record female, 10 years old. Repeated limb weakness in more than 5 months. Initial symptoms of paroxysmal left upper limb acupuncture-like pain. To the left shoulder and upper extremity radiation, gradually heavier, severe upper extremity twitching. The first 4 months of onset of left upper extremity and right lower extremity weakness, weight to not walk, left upper limb can not be raised, the left hand can not hold the goods. The local hospital repeatedly diagnosed as Guillain-Barre syndrome (Guilliain-Barr