Incidental vesicourachal diverticulum in a young female.

A vesicourachal remnant is the rarest presentation of the congenital urachal remnant anomalies, occurring approximately in 3% of those who have them. We discuss a case where a vesicourachal anomaly is discovered incidentally in a pediatric patient by ultrasound and subsequently confirmed by MRI. The urachus connects the dome of the bladder to the umbilical cord in fetal life. After birth, this structure is obliterated and becomes the median umbilical ligament. When complete obliteration does not occur, a urachal remnant is created.