Abstract
A 19-year-old man was referred to our hospital because of abdominal pain. Abdominal guarding was noted. Computed tomography revealed a T-shaped, blind end, gut-like structure arising from the small intestine, accompanying ascites and surrounding small intraabdominal free air. The structure's nutrient vessels were found to originate from the peripheral branch of the superior mesenteric artery. Under the tentative diagnosis of Meckel's diverticulitis or perforated duplication of the alimentary tract, we performed surgical resection of the mass. Intraoperative findings revealed a perforated 8 cm-long duplication of the ileum filled with food residue, with its mesentery deriving from the adjacent intestine. The resected specimen was consistent with acutely perforated ileal duplication.
Duplication of the alimentary tract is a rare congenital gastrointestinal malformation, which can be found in every alimentary tract. Since cases with perforation or peritonitis are scarcely reported, here we add a rare case of perforated duplication of the ileum.
