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duodenal polyps

Friday 11 May 2012

Sporadic duodenal polyps

Sporadic duodenal polyps are uncommon, being found in up to 5% (0.3-4.6% of cases) of patients referred for upper gastrointestinal endoscopy. They are often discovered incidentally and the majority of patients are asymptomatic.

The most common lesions necessitating removal are duodenal adenomas which should be differentiated from other mucosal lesions such as ectopic gastric mucosa, and submucosal lesions such as carcinoids and gastrointestinal stromal tumours (GISTs).


- duodenal hyperplastic polyp
- duodenal adenoma (duodenal intestinal-type adenoma )

  • duodenal tubulous adenoma
  • duodenal villous adenoma
  • duodenal tubulovillous adenoma

- duodenal hamartomas
- duodenal gastric metaplasia / duodenal gastric heterotopia
- duodenal inflammatory fibroid
- duodenal lipoma
- duodenal leiomyoma
- duodenal carcinoid tumor
- duodenal stromal tumor
- solitary duodenal Peutz-Jeghers polyp
- duodenal lymphoma
- duodenal polyps originating from islands of gastric mucosa

According to localization

- non-ampullary duodenal polyp
- ampullary duodenal polyp

See also

- digestive polyps
- duodenal tumors

Paywall references

- Three other types of duodenal polyps: mucosal cysts, focal foveolar hyperplasia, and hyperplastic polyp originating from islands of gastric mucosa.
Remmele W, Hartmann W, von der Laden U, Schumann G, Schäfer E, Schmidt H, Linhart P, Bettendorf U, Schink U.
Dig Dis Sci. 1989 Sep;34(9):1468-72.
PMID: 2766915