Objective To summarize the diagnosis and treatment experience of children with intermittent hydronephrosis caused by ureteral fibroepithelial polyp (UFP). Methods From 2017 to 2020, cases of hydronephrosis caused by ureteral polyp in Anhui Provincial Children’s Hospital were retrospectively enrolled for investigation. Demographic data, clinical manifestations, operation details, pathology and outcomes were collected from patients’ medical data for analysis. Results All seven cases of UFP were boys, including six cases on the left side of the ureter and one case on the right side, at the median age of 7.1 years (3–14 years), with abdominal intermittent pain as the first symptom. All cases underwent laparoscopic pyeloureteroplasty. All the operations were completed successfully; postoperative pathology indicated the presence of primary UFP. Postoperative follow-ups of 1–30 months showed satisfactory recovery and relief from hydronephrosis. Conclusions Laparoscopic pyeloureteroplasty or ureteroureterostomy is one of the optimal treatments for ureteral polyp at present. The surgical method should be determined according to the number of polyps, the length and the diameter of the affected ureter, and also the status of renal function of the patients.

中文翻译：

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腹腔镜治疗小儿原发性输尿管纤维上皮性息肉间歇性肾积水

目的总结输尿管纤维上皮息肉（UFP）所致小儿间歇性肾积水的诊治经验。方法回顾性纳入安徽省儿童医院2017—2020年输尿管息肉所致肾积水病例进行调查。从患者的医疗数据中收集人口统计学数据、临床表现、手术细节、病理学和结果进行分析。结果 7例UFP均为男孩，其中左侧输尿管6例，右侧1例，中位年龄7.1岁（3～14岁），以间歇性腹痛为首发症状。所有病例均行腹腔镜肾盂输尿管成形术。所有操作均已成功完成；术后病理表明存在原发性 UFP。术后 1-30 个月的随访显示恢复令人满意，肾积水得到缓解。结论 腹腔镜肾盂输尿管成形术或输尿管输尿管吻合术是目前输尿管息肉的最佳治疗方法之一。手术方式应根据息肉的数量、受累输尿管的长度和直径以及患者的肾功能状况而定。