A Case of Intra-abdominal Abscess Induced by Involving the Omphalomesenteric Duct Remnant in an Adult

Abstract

A 69-year-old man was admitted to the hospital with the chief complaint of lower abdominal pain. Abdominal computed tomography showed an abscess near the umbilicus, with the abscess communicating with the small intestine. Suspecting abscess formation in the omphalomesenteric duct remnant, laparoscopic surgery was performed. At 50 cm from the ileocecal junction, the ileum was divided into two lumens, one of them leading to the abscess. En-bloc resection of the omphalomesenteric duct remnant and the abscess was performed. Histopathological findings showed the abscess containing gastrointestinal smooth muscle tissue. Omphalomesenteric duct remnant is mostly seen in children, and rarely in adults. To the best of our knowledge, this is the first reported adult case of omphalomesenteric duct remnant with abscess formation in Japan, that was treated by laparoscopic surgery first case of abscess formation of an omphalomesenteric duct remnant in an adult.