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Small bowel (small intestine)

Congenital anomalies


Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 13 December 2012, last major update August 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.


● 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 Apr 10;10:55)


● Resect entire duplication and segment of normal bowel attached to it

End of Small bowel (small intestine) > Congenital anomalies > Duplication

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