特发性椎管内硬膜外脂肪增多症 ( SEL)在临床上少见 ,国内仅报道 7例。我院收治 1例且经手术病理证实 ,现报告如下。病儿 ,女 ,12岁。因双下肢麻木、无力 ,不能独立行走入院。查体 :神志清 ,脑神经检查未见异常 ,走路时向两侧倾倒 ,第 10胸椎以下深浅感觉减弱 ,腹壁反射减弱 , Idiopathic spinal epidural fat disease (SEL) rare in clinical practice, only reported in China in 7 cases. A hospital admitted to our hospital and confirmed by surgical pathology, are as follows. Sick child, female, 12 years old. Due to numbness of both lower limbs, weakness, unable to walk independently admitted to hospital. Examination: Sense of clear, no abnormalities in brain examination, walking to the sides of the dump, the thoracic tenth below the depth of feeling weakened, weakened abdominal reflex,