Huang Limin, Liu Fei, Wang Yanfei, Jin Yanyan, Zhang Yingying, Fu Haidong, Mao Jianhua
Department of Nephrology, National Clinical Research Center for Child Health, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China.
Case Rep Nephrol Dial. 2025 Apr 4;15(1):83-88. doi: 10.1159/000545455. eCollection 2025 Jan-Dec.
Posterior urethral valve (PUV) and vesical calculus are individually among the most common causes of obstructive lower urinary symptoms in children. Intermittent urinary retention can be caused by a combination of PUVs and bladder stones. There are very few reports of an association between PUVs and bladder calculus.
We present a case of intermittent urinary retention resulting from a stone obstructing the PUV. The patient experienced intermittent urinary retention for over a month. A computed tomography scan revealed a bladder stone in the posterior urethra. The intracorporeal lithotripsy for calculus with fulguration of the PUV was performed using holmium:YAG laser.
For any boy presenting with urinary retention, we recommend a thorough urethral assessment; the absence of significant abnormalities in the urethra on voiding cystourethrography cannot rule out the presence of relevant PUV; hence, bladder endoscopy may sometimes be required for further evaluation, to rule out vesical calculus and potential PUVs.
后尿道瓣膜（PUV）和膀胱结石分别是儿童下尿路梗阻症状最常见的病因之一。间歇性尿潴留可能由PUV和膀胱结石共同引起。关于PUV与膀胱结石之间关联的报道非常少。
我们报告一例因结石阻塞PUV导致间歇性尿潴留的病例。患者经历了一个多月的间歇性尿潴留。计算机断层扫描显示后尿道有膀胱结石。使用钬激光对结石进行体内碎石并对PUV进行电灼。
对于任何出现尿潴留的男孩，我们建议进行全面的尿道评估；排尿性膀胱尿道造影显示尿道无明显异常不能排除相关PUV的存在；因此有时可能需要膀胱内镜检查以进一步评估，排除膀胱结石和潜在的PUV。
