Abstract
A 43-year-old man visited our hospital after experiencing dull right lower abdominal pain for 7 days. He had a history of appendectomy in his youth. Enhanced computed tomography revealed abscess formation in the mesentery of the ascending colon. Because the clinical symptoms and inflammation findings were mild and marginal, he underwent laparoscopic surgery 24 days after onset. Laparoscopy-assisted right colectomy was performed to remove a 4-cm inflammatory mass in the mesentery of the ascending colon. The resected specimen revealed that the patient's cecum was duplicated (but not ectopic) near the mesenteric abscess. Histopathological analysis revealed that the cecum was penetrated due to inflammation. The penetration of duplicated alimentary tracts is rare in adults. Here, we present a case and review the relevant literature.
