Difference between revisions of "Foveolar type dysplasia"
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| Gross = | | Gross = | ||
| Grossing = | | Grossing = | ||
| Site = [[stomach]], [[duodenum]] (esp. [[ampulla of | | Site = [[stomach]], [[duodenum]] (esp. [[ampulla of Vater]]), [[esophagus]] | ||
| Assdx = | | Assdx = | ||
| Syndromes = [[familial adenomatous polyposis]] | | Syndromes = [[familial adenomatous polyposis]] | ||
Revision as of 06:59, 15 February 2015
| Foveolar type dysplasia | |
|---|---|
| Diagnosis in short | |
 Foveolar dysplasia of the duodenum. H&E stain. | |
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| |
| Synonyms | type 2 dysplasia, foveolar dysplasia, foveolar/hyperplastic dysplasia |
| LM DDx | benign foveolar epithelium, gastric heterotopia (if not stomach), benign ampullary epithelium, hyperplastic polyp |
| Site | stomach, duodenum (esp. ampulla of Vater), esophagus |
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| |
| Syndromes | familial adenomatous polyposis |
|
| |
| Prevalence | not common |
| Other | may be subtle |
Foveolar type dysplasia, also foveolar dysplasia, is a form of dysplasia that arises from the foveolar cells, typically seen in the stomach. It is may be subtle to unaccustomed eyes.
It is also described as non-adenomatous dysplasia, type 2 dysplasia and foveolar/hyperplastic type dysplasia.[1]
General
- Precursor to adenocarcinoma.
Microscopic
Features:
- Tall columnar cells with basal nuclei in a villiform architecture.[1]
DDx:
- Benign foveolar epithelium.
- Hyperplastic polyp.
Images
FD - intermed. mag.
FD - high mag.
www: