Reviewer: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 14 June 2013, last major update May 2013
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.
- Found within Barrett's esophagus, resembles colonic adenoma (well defined sessile or pedunculated polyp, usually 0.5 - 1.5 cm), but often associated with invasive adenocarcinoma (Hum Pathol 1999;30:745), so recommended to not use "adenoma" terminology; may resemble dysplasia in ulcerative colitis
- 2% of all dysplasia seen in Barrett's esophagus
- Clinical, pathological and molecular features are similar to flat Barrett's dysplasia, less often has a pyloric gland phenotype (Virchows Arch 2005;446:537)
- Well defined sessile or pedunculated polypoid lesion, 4 to 15 mm
- Adenocarcinoma may be present within polyp
End of Esophagus > Premalignant lesions > Polypoid dysplasia
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