A Rare Case of Remnant of Omphalomesenteric Duct Presented with Umbilical Sinus with Granuloma in an Adult

The omphalomesenteric duct (OMD) is an embryonic structure connecting the yolk sac to the midgut. Failure of the resorption of the duct results in several anomalies. These anomalies usually occur in approximately 2% of the population. Individuals having such anomalies may remain asymptomatic throughout life. The embryonic vitelline duct obliterates in 5 to 9 weeks of intrauterine life normally. Persistence of this results in vitellointestinal duct/ omphalomesenteric duct anomalies. It is usually seen in the paediatric age group. Moreover, they have a different course in adults than the paediatric age group in which they frequently involute and have a benign course. These remnants are prone to infection and development of malignancy. A proper diagnostic workup by clinical and imaging tools is required. Hereby we have reported a rare case of remnant OMD which presented as an umbilical sinus with a granuloma in an adult patient.