title: Adenocarcinoma with intraductal papillary mucinous neoplasm arising in jejunal heterotopic pancreas.
abstract: A 74-year-old man suffered from jejunal perforation and adhesion to sigmoid colon due to adenocarcinoma associated with intraductal papillary mucinous neoplasm (IPMN) arising in a jejunal heterotopic pancreas. The jejunal lesion showed direct extension to the sigmoid colon, which was mistaken as sigmoid colon cancer by surgeons. Malignant transformation is a rare complication of a heterotopic pancreas. About half of malignancies in reported cases were ductal adenocarcinoma arising in the stomach, and the jejunal location is extremely rare. Furthermore, IPMN is also uncommon finding in a heterotopic pancreas.
authors.affiliation: Department of Pathology, Inha University School of Medicine, Incheon, Korea.
authors.forename: Ju Young
authors.initials: JY
authors.lastname: Song
authors.forename: Jee Young
authors.initials: JY
authors.lastname: Han
authors.forename: Sun Keun
authors.initials: SK
authors.lastname: Choi
authors.forename: Lucia
authors.initials: L
authors.lastname: Kim
authors.forename: Suk Jin
authors.initials: SJ
authors.lastname: Choi
authors.forename: In Suh
authors.initials: IS
authors.lastname: Park
authors.forename: Young Chae
authors.initials: YC
authors.lastname: Chu
authors.forename: Kyu Ho
authors.initials: KH
authors.lastname: Kim
authors.forename: Joon Mee
authors.initials: JM
authors.lastname: Kim
keywords: Adenocarcinoma; Heterotopia; Jejunum; Pancreas