Barium radiography showed there were filling defect, niche, bridging fold, etc.
钡剂造影表现是充盈缺损，龛影和桥形皱襞等。
Results Irregular filling defect and hydronephrosis were seen in the renal pelvis and calyces on intravenous pyelography (IVP).
结果静脉肾盂造影(IVP)显示肾盂、肾盏内不规则充盈缺损，肾盏积水。
Retrograde pyelography showed filling defect of the diseased ureter in 16 (76%) of 21 cases (5 cases had failure of intubation).
逆行肾盂造影检查21例，插管不成功5例，输尿管充盈缺损16例(76%)。
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