Small intestine & ampulla
Congenital anomalies
Duplication
Author: Hanni Gulwani, M.B.B.S.
Last author update: 1 August 2012
Last staff update: 18 November 2020
Copyright: 2003-2025, PathologyOutlines.com, Inc.
PubMed Search: Duplication[TI] small bowel[TIAB]
Cite this page: Gulwani H. Duplication. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/smallbowelduplication.html. Accessed April 3rd, 2025.
Definition / general
- Saccular to long, cystic structures which usually have shared muscular wall (so incomplete duplication)
- More common in ileum, near ileocaecal valve; rare in duodenum, where choledochocele (cystic or diverticular dilatation of terminal intramural portion of the common bile duct) is more common
- Present with abdominal mass, pain, vomiting and chronic rectal bleeding
- Associated with gastric heterotopia but not associated with vertebral body abnormalities
Case reports
- 51 year old man with adenocarcinoma arising in a cystic duplication (World J Surg Oncol 2012;10:55)
Treatment
- Resect entire duplication and segment of normal bowel attached to it
