患者男性,17岁。右下腹部隐痛伴右下肢疼痛及活动障碍3月入院。起病后曾在多家医院作腰椎摄片、CT、椎管造影等检查拟诊为腰椎间盘脱出症,并在当地医院住院作盆骨牵引治疗,病情仍加重,体重减轻15kg,无发热盗汗,大小便正常。入院查体:右下腹触及质硬肿物,表面光滑,边界不清,压痛、固定。右下肢肌肉轻度萎缩,被动半屈位,右下肢神经反射减退。B超:右下腹可探及13 The patient is male, 17 years old. The right lower abdomen with pain and movement disorders in the right lower limb was admitted to hospital in March. After the onset, he had been diagnosed with lumbar disc herniation, CT, and spinal radiography in a number of hospitals and was diagnosed with lumbar disc herniation. He was hospitalized in a local hospital for treatment of pelvic traction. The condition was still worse, 15 kg weight loss, no fever and night sweats. , urine is normal. Admission examination: the right lower abdomen touched hard mass, smooth surface, unclear border, tenderness, and fixation. Right lower extremity muscles slightly atrophy, passive half-flexion, and lower right nerve reflexes. B ultrasound: 13 can be found in the right lower abdomen