Contralateral renal anomalies were detected in five children, which included ureteropelvic junction stenosis, ureterovesical junction stenosis, distal ureteral stenosis and polycystic kidney disease.

• 有5个病例可发现对侧肾异常，其中包括肾输尿管交接处狭窄、输尿管膀胱交接处狭窄、远端输尿管狭窄和多囊肾。