On intravenous urogram the ureterocele usually showed a positive cobra-head dilatation.

静入泌尿系可见其影像，与“眼镜蛇头”相类似。

Perioperative serum creatinine, electrolytes, blood gas, and a follow-up excretory urogram, cystogram, and pathological examination were used to assess the surgical outcome.

手术前后的血清肌酸、电解质、动血气体分析以及追踪时取得肾盂摄影、膀胱摄影、病来评估手术的结果。