Pathology of the Gastrointestinal Tract

2017 Edition
| Editors: Fátima Carneiro, Paula Chaves, Arzu Ensari

Adenoma, Upper Gastrointestinal Tract

  • Chella R. S. van der Post
  • Fátima Carneiro
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-40560-5_1557

Synonyms

Intestinal-type adenoma; Polyps

Definition

An adenoma is defined by the World Health Organization as a “circumscribed benign neoplasm composed of tubular and/or villous structures lined by dysplastic epithelium.” Gastric adenomas are depicted as raised, protruding, or polypoid lesions composed of dysplastic epithelium that project above the surrounding gastric mucosa and therefore distinct from flat mucosal dysplasia or intraepithelial dysplasia like formerly termed flat adenomas or depressed adenomas. The grade of the dysplastic epithelium that comprises the adenoma is classified as low grade or high grade. Gastric adenomas are histologically divided into intestinal- and gastric- types based on the type of glandular epithelium they display. In this entry, intestinal-type gastric adenoma is being discussed.

Sporadic gastric adenomas often occur in a background of chronic gastritis with atrophy and intestinal metaplasia. Adenomas may actually represent polypoid areas of...

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References and Further Reading

  1. Abraham, S. C., Mongomery, E. A., Singh, V. K., Yardley, J. H., & Wu, T. T. (2002). Gastric adenomas: Intestinal-type and gastric-type adenomas differ in the risk of adenocarcinoma and presence of background mucosal pathology. The American Journal of Surgical Pathology, 26(10), 1276–1285.PubMedCrossRefGoogle Scholar
  2. Abraham, S. C., Park, S. J., Lee, J. H., Mugartegui, L., & Wu, T. T. (2003). Genetic alterations in gastric adenomas of intestinal and foveolar phenotypes. Modern Pathology, 16(8), 786–795.PubMedCrossRefGoogle Scholar
  3. Choi, C. W., Kang, D. H., Kim, H. W., Park, S. B., Kim, S., & Cho, M. (2012). Endoscopic submucosal dissection as a treatment for gastric adenomatous polyps. Scandinavian Journal of Gastroenterology, 47(10), 1218–1225.PubMedCrossRefGoogle Scholar
  4. Goddard, A. F., Badreldin, R., Pritchard, D. M., Walker, M. M., Warren, B., & British Society of Gastroenterology. (2010). The management of gastric polyps. Gut, 59(9), 1270–1276.PubMedCrossRefGoogle Scholar
  5. Park do, Y., Srivastava, A., Kim, G. H., Mino-Kenudson, M., Deshpande, V., Zukerberg, L. R., et al. (2008). Adenomatous and foveolar gastric dysplasia: Distinct patterns of mucin expression and background intestinal metaplasia. The American Journal of Surgical Pathology, 32(4), 524–533.PubMedCrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Chella R. S. van der Post
    • 1
  • Fátima Carneiro
    • 2
  1. 1.Department of PathologyRadboud University Medical CenterNijmegenThe Netherlands
  2. 2.Faculty of Medicine of Porto University, Centro Hospitalar São João and Ipatimup/i3SPortoPortugal