Ultrasonographic demonstration of a type 1 omphalomesenteric duct remnant.

The vitelline or omphalomesenteric duct malformations constitute a rare group and are seen in only 2% of people. The malformations can take the form of a patent duct, a cyst, a fistula, or a sinus. They may or may not be symptomatic depending on the type of malformation. We present ultrasonographic features of a patent omphalomesenteric duct remnant in a 3-week-old boy who presented to our hospital with a non-healing umbilical lesion. Ultrasound can prove beneficial in the work-up of such cases.