英语语法分析

It may be caused by obstruction, if hydronephrosis is complicated with bilateral hydroureterosis or hydronephrosis becomes more serious dynamically.

肾盂积水伴双侧输尿管积水者动态观察，积水加重者，多与泌尿系梗阻有关。

Materials and Methods Of 25 cases with ureteral stricture and upper hydroureterosis, 20 were due to ureterolithotomy and 5 non-external compressive stricture of unknown cause.

材料与方法25例经影像学确诊为输尿管狭窄并上尿路积水中，20例为输尿管取石术后狭窄，5例为不明原因非外压性狭窄。