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目的 探讨白肾征的形成机理与病因。方法 回顾性分析 2 0例白肾的临床资料及X线表现。结果 在静脉肾盂造影片上 ,患肾实质密度逐渐增高 ,肾盂肾盏呈空虚负影或有少量造影剂充盈。 2 0例中 ,输尿管阳性结石 16例 ,输尿管阴性结石 2例 ,腹膜后转移瘤 1例 ,盆腹部放疗后引起 1例。 7例结石排出后 ,1周内复查IVP ,患肾功能恢复正常 ,白肾征消失。结论 白肾出现提示输尿管发生急性梗阻 ,而患肾功能尚未明显受损 ,及时解除梗阻 ,可免患肾功能受到进一步损害。
Objective To investigate the formation mechanism and etiology of white kidney syndrome. Methods The clinical data and X-ray findings of 20 cases of white kidney were retrospectively analyzed. Results in intravenous pyelography, suffering from renal parenchymal density gradually increased, pyelonecrosis was a virtual negative or a small amount of contrast medium filling. In 20 cases, ureter positive stones in 16 cases, ureter negative stones in 2 cases, retroperitoneal metastasis in 1 case, pelvic abdomen caused by radiotherapy in 1 case. Seven cases of stone discharge, review IVP within 1 week, suffering from renal function returned to normal, white kidney sign disappeared. Conclusions The occurrence of white kidney prompted ureteral acute obstruction, and suffering from renal function has not yet significantly impaired, promptly relieve the obstruction, may be prevented from further damage to renal function.