畸胎瘤发生于脊髓内在临床上较少见。1999～2002年我们共收治2例，现结合文献报告如下。例1，女，22岁。排尿困难2年伴左下肢肌无力。查体：左侧股四头肌肌力3级，小腿外侧感觉减退。考虑为椎管内占位性病变。MRI检查于L2～L3节段脊髓内见有不规则异常信号，T2信号略不均匀，其 Teratoma occurs in the spinal cord clinically rare. From 1999 to 2002, we received a total of 2 cases, are now combined with the literature as follows. Example 1, female, 22 years old. 2 years of dysuria with left lower extremity weakness. Physical examination: Left quadriceps muscle strength 3, lateral leg sensory decline. Considered as a space-occupying lesion in the spinal canal. MRI findings in the L2 ~ L3 segment spinal cord see abnormal signal, T2 signal slightly uneven, its