Fig. 1.

Basic demographic data of included patients and their respective ultrasound and pathoanatomic diagnosis
| Age | Sex | Sonographic diagnosis | Pathoanatomic diagnosis | Incidental finding |
|---|---|---|---|---|
| 10.9 y | F | Urachal sinus | Patent urachus | No |
| 0 y | M | Patent urachus | Conservative management | Yes, evaluated for anorectal malformation |
| 1 y | M | Normal result | Urachal sinus | No |
| 0 y | M | Urachal diverticulum | Conservative management | Yes, evaluated for lower urinary tract obstruction |
| 0.1 y | F | Urachal sinus | Urachal sinus | No |
| 15.9 y | M | Urachal cyst | Urachal cyst | Yes, suspected appendicitis |
| 0.2 y | F | Normal result | Urachal sinus | No |
| 0 y | M | Patent urachus | Patent urachus | Yes, evaluated for anorectal malformation |
| 0.2 y | M | Patent urachus | Patent urachus | No |
| 0.2 y | F | Urachal cyst | Urachal cyst | No |
| 1 y | M | Patent urachus | Patent urachus | No |
| 0.1 y | M | Inconclusive normal result (VCU: Patent urachus) | Patent urachus | No |
| 11.5 y | M | Patent urachus | Patent urachus | No |
| 10.1 y | M | Urachal sinus | Urachal sinus | No |
| 0.1 y | M | Patent urachus | Patent urachus | No |