Renal-Bladder Ultrasound and VCUG. One-month-old female child with prenatally detected hydronephrosis. Renal and bladder ultrasound (Figures 2a–c) demonstrate bilateral renal duplication with upper poles subtended by a ureterocele. VCUG (Figure 2d–e) demonstrates bilateral ureteroceles with left lower pole VUR (Figure 2a) Renal Ultrasound demonstrating right renal duplication