Since UPJ blocks normal urine flow, the affected kidney will become swollen ... is usually seen on a prenatal ultrasound, while the fetus is still growing in a mother's womb.

Early detection and proper management is crucial for babies born with a birth defect called antenatal hydronephrosis -- a ...

On ultrasound, 50 of 90 children (aged 1 week to 17 years) had a left kidney that was longer than ... with abnormal DMSA scans than in those with normal DMSA scans (12.4 mm vs 3.9 mm; P <0.0001).