Duodenitis is a term given to inflammation of the duodenum.



A duodenitis can result from both intrinsic processes within the duodenum as well as from processes occuring outside the duodendum. It can occur from infective as well as non-infective inflammatory processes.

Non-infective inflammatory
  • secondary involvement from
  • Crohn disease: duodenal involvement in 0.5-4% of cases
    • primary involvement: ulcer, stricture
    • secondary involvement: enteric fistula
  • duodenal ulcers: occur most frequently in the duodenal bulb
  • AIDS
  • post radiation therapy

Radiographic features

Findings include thickening of folds (if present they are almost always found proximal to the ampulla of Vater), nodules or nodular folds, and erosions. Deformity of the duodenal bulb also may be seen.

Article information

rID: 41233
Synonyms or Alternate Spellings:
  • Duodenal inflammation
  • Inflammation of the duodenum
  • Inflammation of duodenum

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Cases and figures

  • Figure 1: CMV duodenitis: histology
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  • Case 1
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