Small intestine & ampulla

Congenital anomalies


Topic Completed: 1 August 2012

Minor changes: 18 November 2020

Copyright: 2003-2021,, Inc.

PubMed Search: Duplication[TI] small bowel[TIAB]

Hanni Gulwani, M.B.B.S.
Page views in 2020: 803
Page views in 2021 to date: 781
Cite this page: Gulwani H. Duplication. website. Accessed October 21st, 2021.
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
  • Resect entire duplication and segment of normal bowel attached to it
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