Duodenum

• foveolar metaplasia
  7 August

  foveolar metaplasia of the duodenal mucosa; duodenal foveolar metaplasia
  Gastric-type epithelium and islands of oxyntic mucosa in duodenal biopsies are considered by some to be part of a spectrum of metaplastic change related to peptic disorders.
  Images https://twitter.com/UTSW_GIpath/status/893183787424731138

• duodenal plasmocytoma
  4 July

  Images
  Duodenal plasmocytoma https://twitter.com/DraEosina/status/880806225306411009
  See also
  duodenal tumors
  plasmocytoma

• gastric metaplasia in duodenum
  9 March

  Associations
  peptic duodenitis

• duodenal polyps originating from islands of gastric mucosa
  3 January

  Types mucosal cysts focal foveolar hyperplasia hyperplastic polyp
  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: (...)

• duodenal lymphangioma
  21 June 2016

  Images
  duodenal lymphangioma : solitary polyploid duodenal mass with a speckled white surface https://twitter.com/DrjohninNE/status/730191194026704896
  See also
  duodenal tumors duodenal vascular tumors
  intestinal lymphangioma

• duodenal marginal zone B-cell lymphoma
  6 June 2016

  Images
  https://twitter.com/Konzult_/status/739639506882732032
  See also
  marginal zone B-cell lymphoma (MALT lymphoma) digestive marginal zone B-cell lymphoma

• duodenal GIST
  21 March 2016

  Images
  https://twitter.com/yamahalion/status/570664719947706368
  See also
  gastrointestinal stromal tumor (GIST)

• duodenal gastric heterotopia
  15 October 2013

  Cases
  http://lgpathology.blogspot.fr/2008/07/50-yo-male-with-duodenal-polyp.html

• Brunner gland hyperplasia
  1 March 2013

  Brunner Gland’s Hyperplasia
  Brunner glands consist of mucin-secreting glands that are normally located in the deep mucosa and submucosa of the duodenum. These glands protect the duodenal mucosa from the damaging effects of gastric acid. In addition, they extend from the pylorus to the second portion of the duodenum, up to the papilla, and may, in rare cases, extend to the proximal jejunum.
  Microscopy
  Histologically, Brunner’s gland hyperplasia may manifest as solitary or multiple small (...)

• cystic dilatation of Brunner glands
  1 March 2013

  Etiology
  Brunner Gland Hyperplasia
  Brunner glands consist of mucin-secreting glands that are normally located in the deep mucosa and submucosa of the duodenum.
  These glands protect the duodenal mucosa from the damaging effects of gastric acid.
  In addition, they xtend from the pylorus to the second portion of the duodenum, up to the papilla, and may, in rare cases, extend to the proximal jejunum.
  Histologically, Brunner’s gland hyperplasia may manifest as solitary or multiple small (...)

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