1　病例　　患者 ,男 ,35岁 ,右腰腹部阵发性疼痛 1年余 ,近 1周疼痛发作频繁 ,绞痛 ,伴恶心 ,自述不能忍受而来院就诊。检查 :无呕吐、血尿及腹泻 ,无尿路刺激征 ,右肾区叩痛阳性。腹平片示第 3腰椎右椎弓根处有一花生米粒大小致密影 ,疑为右输尿管结石 ,行静脉肾盂造影 ,见左 1 case of patients, male, 35 years old, right lower abdomen paroxysmal pain more than 1 year, nearly 1 week, frequent episodes of pain, colic, with nausea, readme unbearable to hospital. Check: no vomiting, hematuria and diarrhea, no urinary tract irritation, right kidney area knocking pain positive. Abdominal plain film showed the third lumbar vertebral pedicle at a peanut grain size compact shadow, suspected of right ureteral calculi, intravenous pyelography, see the left