Urachus fistulaTags: Soft tissues sonography, Esaote MyLab 70, Clinical report, Pediatric Posts 11:14 01-05-2024 Urachus fistula#1 Infant with purulent discharge from the navel is referred for an ultrasound scan with a suspected fistula with connection to a bladder. On ultrasound, no connection of fistula with the bladder was visualized.