hydronephrectasia

例句：

1. 1.He was diagnosed with hydronephrectasia and required surgery to correct the issue.
   他被诊断出患有水潴留症，需要手术来纠正这个问题。
2. 2.The patient's condition worsened due to hydronephrectasia, requiring immediate medical attention.
   由于水潴留症，患者的病情恶化了，需要立即医疗关注。
3. 3. The doctor explained that hydronephrectasia can lead to kidney damage if left untreated.
   医生解释说，如果不治疗，水潴留症可能会导致肾脏损伤。