Question
If a neonate is found to have bilateral hydronephrosis through an ultrasound examination, and one of the ureters is also dilated, is it necessary to undergo immediate surgical treatment after birth?
Answer
Neonatal hydronephrosis typically requires the exclusion of any congenital renal malformations. If the ultrasound results are abnormal, further examinations are recommended to rule out malformations or other issues. If no malformations are present, kidney function monitoring can be considered. For cases with malformations, surgical treatment may be necessary, and generally, if hydronephrosis exceeds the normal range, it is usually difficult to absorb spontaneously.