Small intestine & ampulla
Congenital anomalies
Diverticula (other than Meckel)
Author: Hanni Gulwani, M.B.B.S.
Last author update: 1 August 2012
Last staff update: 18 November 2020
Copyright: 2003-2024, PathologyOutlines.com, Inc.
PubMed Search: Small bowel diverticula[TIAB]
Cite this page: Gulwani H. Diverticula (other than Meckel). PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/smallboweldiverticula.html. Accessed April 24th, 2024.
Definition / general
Duodenal:
Jejunal:
- 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
Jejunal:
- Present in 0.3 - 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
Images hosted on other servers:
Jejunal diverticula
