病例摘要患者,女,13岁,因腰痛一月加重伴双下肢疼痛,麻木、无力一周人院.体检:双侧L2～4椎旁压痛伴下肢放射痛,鞍区及双膝关节以下感觉减退.左下肢肌力Ⅱ~+级,右下肢Ⅰ级,双下肢肌张力减弱.双膝腱反射(+),跟膝腱反射及肛门反射消失,双侧直腿抬高试验强阳性.MRI示L2～4硬脊膜外一大小约7×4×2cm肿物,T1加权等信号,T2加权为高信 Case description Female, 13 years old, suffered from lower back pain, numbness and weakness in one hospital due to low back pain in January. Physical examination: bilateral L2 ~ 4 paravertebral tenderness with lower limb radiating pain, Left lower extremity muscular strength Ⅱ ~ + level, right lower extremity Ⅰ level, both lower extremity muscular tension decreased.Double tendon reflex (+), with knee tendon reflex and anal reflex disappeared, bilateral positive straight leg raising test positive.MRI L2 ~ 4 epidural a size of about 7 × 4 × 2cm tumor, T1-weighted signals, T2-weighted high-letter