Kay R, Lee T G, Tank E S
Urology. 1979 Mar;13(3):286-8. doi: 10.1016/0090-4295(79)90424-2.
Ultrasonography offers a noninvasive method to visualize antenatal or neonatal anatomy which will lead to early detection and treatment of abnormalities. In these 2 cases, ultrasound allowed prompt diagnosis of hydronephrosis despite normal physical examination and laboratory values at birth.