腹膜后纤维化(RPF)又称输尿管周围炎。此症较少见,常易被忽视,我院自1979年以来共收治3例介绍如下。患者男2例,女1例,平均年龄58.3岁,主要症状为全部有腰痛无尿症状,1例下肢水肿,2例伴有恶心呕吐,均有脊肋角叩击痛和不同程度的贫血,并有明显的氮质血症。B超检查均有肾盂积水。术后病理诊断为腹膜后纤维硬化。讨论:此症病因尚不清楚,有人论及可能是腹腔或盆腔之慢性炎症沿淋巴引流扩散,另有可能是外伤等引起腹膜后间隙大量纤维组织增殖性炎性反应。或可能为机体对 Retroperitoneal fibrosis (RPF), also known as perirephritis. This disease is less common, often easily overlooked, our hospital since 1979, a total of 3 cases were treated as follows. There were 2 males and 1 females, with an average age of 58.3 years. The main symptoms were all the symptoms of lumbago without urine, one case of lower extremity edema, 2 cases of nausea and vomiting, And there is obvious azotemia. B-ultrasound has hydronephrosis. Postoperative pathological diagnosis of retroperitoneal fibrosis. Discussion: The etiology of this disease is not yet clear, some people may refer to the peritoneal or pelvic chronic inflammation may spread along the lymphatic drainage, and may be trauma caused by a large number of retroperitoneal fibrosis, proliferative inflammatory reaction. Or may be the body’s right