Small bowel (small intestine)
Congenital anomalies

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 9 February 2018, last major update August 2012

Copyright: (c) 2003-2018,, Inc.

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

Cite this page: Gulwani, H. Duplication. website. Accessed October 18th, 2018.
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