患者男,20岁。1987年2月无明显诱因逐渐出现肩颈部及双下肢麻木、无力,同时伴上胸背部触觉减退,而后感觉减退向下延伸。发病3个月后,颈以下感觉全部消失,双下肢无力进行性加重以至不能行走,且出现大小便排出困难。在当地医院拍片示颈椎先天性侧弯,施行手术矫正。术中探查脊髓发现C_8～T_1呈梭形膨大,波动消失,后正中切开脊髓,查出髓内肿瘤,行包膜内肿瘤部分切除及 Patient male, 20 years old. February 1987 there was no obvious incentive to gradually numbness of the neck and neck and lower extremities, weakness, accompanied by lower thoracodorsal touch, and then feel down extended downward. 3 months after onset, the neck felt the following all disappeared, weakness of the lower extremities were not progressive and can not walk, and excretion of urine problems. In the local hospital film showed congenital cervical spine, the implementation of surgical correction. Intraoperative exploration of the spinal cord found C_8 ~ T_1 was fusiform expansion, disappeared after the midline incision of the spinal cord, intramedullary tumors detected, the line of the capsule partial resection and