title: Adenocarcinoma arising from Meckel's diverticulum in the ileum with malrotation of the midgut.
abstract: Meckel's diverticulum (MD) is a true congenital diverticulum that is remnant by incomplete obliteration of the omphalomesenteric duct. It is the most common congenital anomaly of the gastrointestinal tract, with an estimated prevalence of 2% (0.3% to 3% in autopsy studies). About 90% of MD occurs within 100 cm of the ileocecal valve. A primary malignant tumor arising within an MD is extremely uncommon. Malignancies are reported to account for only 0.5% to 3.2% of the complications. Carcinoids are the most common malignant tumors occurring in MD. Adenocarcinomas are extremely uncommon and very poor prognosis has been reported. We report a case of radiographically diagnosed chronic inflammatory mass caused by adenocarcinoma arising from MD in the ileum with malrotation of the midgut incidentally discovered at exploration.
authors.affiliation: Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea.
authors.forename: Jin Kwon
authors.initials: JK
authors.lastname: Lee
authors.forename: Seung Jin
authors.initials: SJ
authors.lastname: Kwag
authors.forename: Seong Taek
authors.initials: ST
authors.lastname: Oh
authors.forename: Jun Gi
authors.initials: JG
authors.lastname: Kim
authors.forename: Won Kyung
authors.initials: WK
authors.lastname: Kang
keywords: Adenocarcinoma; Intestinal malrotation; Meckel diverticulum