Various Clinical Manifestation of Omphalomesenteric Duct Remnant in a Child: A Case Report

Abstract

Omphalomesenteric duct (OMD) remnant is a condition in which the omphalomesenteric duct fails to obliterate completely or partially. Failure in this step can produce various patterns, such as a vitelline cyst, umbilical sinus, polyp, Meckel’s diverticulum, and patent OMD. Various clinical manifestations of OMD rarely occur in one patient. We present the case of omphalomesenteric duct remnant, manifested as anterior wall abdominal mass, intraperitoneal hemorrhage, and obstructive ileus. Case report: A four-year-old girl was referred to our hospital with obstructive ileus and abdominal wall mass on the left lower quadrant. Contrast-enhanced abdominal computed tomography (CT) scan found an irregular cystic mass in the abdominal cavity that adheres to the anterior wall of the abdomen and bowel structure with a fluid-solid level without enhancement. Further medical history was taken and found a history of intermittent watery umbilical discharge that appears three times in 2 years after birth. Omphalomesenteric duct remnant was suspected, then proceed to exploratory laparotomy. We found intraperitoneal hemorrhage and 5x4 centimeters frail mass adhering to the anterior wall of the abdomen on the left side of the umbilicus. Histopathological examination confirmed intestinal tissue, suggesting remnants of the omphalomesenteric duct and pancreatic tissue with a chronic inflammatory pattern. Diagnosing omphalomesenteric duct remnant could be challenging and should be considered a differential diagnosis of obstructive ileus, particularly if persistent umbilical discharges are also present. On the other hand, early diagnosis and appropriate management of persistent umbilical discharge could prevent a greater outcome.