A 6-year-old girl was brought to the office by her father due to recurrent urinary tract infections. She had been prescribed antibiotics on her previous visit. Temperature is 37.2C (99 F), blood pressure 90/60 mm of Hg, pulse is 106/min, and respirations 20/min. Physical examination shows mild tenderness in the suprapubic region. Urinalysis is normal. A renal ultrasound is performed, and findings are shown in the exhibit. Hence, a voiding cystourethrogram is ordered.