[Adult ileal duplication diagnosis using combined capsule endoscopy and computed tomography enterography with amidotrizoic acid meglumine solution: a case report].

A 67-year-old man with complaints of dark red stools was admitted to the hospital. Capsule endoscopy, computed tomography enterography (CTE) with amidotrizoic acid meglumine solution (AM), and transanal double-balloon enteroscopy revealed a diverticulum in the ileum, which was accompanied by an ulcer in the vicinity. A partial ileal resection was performed laparoscopically, and the intraoperative and pathological findings indicated that the patient had a duplicated intestinal tract. Intriguingly, we identified a few reports on preoperative diagnosis of ileal duplication;however, we experienced such a case wherein the combination of capsule endoscopy and CTE using AM aided in its diagnosis.