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Small bowel (small intestine)

Congenital anomalies

Diverticula (other than Meckelís)

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


● Present in 1-2%, usually solitary and congenital, may cause obstructive jaundice, pancreatitis, fistulas, hemorrhage, perforation
● Usually penetrate the pancreas
● May project into lumen like a polyp

● Present in 0.3% to 1.4% of autopsies
● Three times less frequent than duodenal, but four times more likely to develop complications
● Usually proximal jejunum along mesenteric border
● Often multiple with thin wall
● Associated with diverticula elsewhere in GI tract
● Some are congenital but most are acquired
● Usually asymptomatic but may cause obstruction, hemorrhage, perforation, abscess, malabsorption or Vitamin B12 deficiency, possibly due to bacterial overgrowth in the diverticula

Case reports

● 88 year old man with acute ulcerative jejunal diverticulitis (World J Gastroenterol 2008;14:6265)

Clinical images

Jejunal diverticula

End of Small bowel (small intestine) > Congenital anomalies > Diverticula (other than Meckelís)

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