We suggest that classifying the filling defect patterns of ureteral TCCs may provide important preoperative information for planning treatment and predicting outcome.

• 输尿管肿瘤可以根据尿路摄影中填影缺损型态的表现，作为手术前的重要参数是有助于手术前的治疗计画与肿瘤预后的预测。