Editorial Comment: Diagnostic ureteroscopy prior to nephroureterectomy for urothelial carcinoma is associated with a high risk of bladder recurrence despite technical precautions to avoid tumor spillage

编者按：尽管采取了避免肿瘤溢出的技术预防措施，但在对尿路上皮癌患者进行肾输尿管切除术前进行诊断性输尿管镜检查仍存在较高的膀胱复发风险。