Patent Urachus
Overview
Plain-Language Overview
Patent urachus is a rare condition that affects the connection between the bladder and the belly button in newborns. Normally, this connection closes before birth, but in this condition, it remains open, creating a small tube. This tube can cause urine to leak from the belly button, which is a key sign. The condition involves the urinary system, specifically the bladder and the umbilical area. It can lead to infection or irritation around the belly button if not treated. Early diagnosis is important to prevent complications and ensure proper healing.
Clinical Definition
Patent urachus is a congenital anomaly characterized by the failure of the urachus, a fibrous remnant of the allantois, to close after birth. This results in a persistent tubular connection between the bladder dome and the umbilicus. The core pathology is incomplete obliteration of the urachal lumen, which normally involutes during fetal development. Clinically, it presents with urine leakage from the umbilicus, possible periumbilical infection, and sometimes an associated urachal cyst or sinus. The condition is significant because it can lead to recurrent infections, skin irritation, and rarely, malignant transformation if left untreated. Diagnosis and management are essential to prevent these complications.