Difference between revisions of "Stomach biopsy for Helicobacter pylori"
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==Microscopic evaluation== | ==Microscopic evaluation== | ||
− | [[File:Helicobacter pylori, Gastric Mucosa, H&E (390307642).jpg|thumb| | + | [[File:Helicobacter pylori, Gastric Mucosa, H&E (390307642).jpg|thumb|Helicobacter pylori on HE stain, being curved bacteria in the lumen of a gastric foveola.]] |
Look for: | Look for: | ||
*''Helicobacter pylori''-like '''bacteria''' in the lumen, as curved, spirochete-like bacteria, generally in the superficial mucus layer and along microvilli of epithelial cells.<ref name=PathologyOutlines/> | *''Helicobacter pylori''-like '''bacteria''' in the lumen, as curved, spirochete-like bacteria, generally in the superficial mucus layer and along microvilli of epithelial cells.<ref name=PathologyOutlines/> |
Revision as of 17:21, 28 September 2020
Author:
Mikael Häggström [note 1]
Contents
Microscopic evaluation
Look for:
- Helicobacter pylori-like bacteria in the lumen, as curved, spirochete-like bacteria, generally in the superficial mucus layer and along microvilli of epithelial cells.[1]
- Associated inflammation, typically a chronic inflammatory infiltrate with germinal centers (follicular gastritis), and plasma cells in lamina propria.[1][notes 1] There should be at least 3 plasma cells facing each other to make a diagnosis of chronic gastritis.
Example report
Chronic gastritis without H. pylori-like organisms should be described as non-specific:
Mild chronic gastritis, which is non-specific. Negative for H. pylori-like organisms on H&E stain. |
Notes
- ↑ Plasma cells and lymphocytes are normally found in the lamina propria of the small and large intestine, but is abnormal in the stomach.
- ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.
Main page
References
- ↑ 1.0 1.1 Elliot Weisenberg. Stomach - Infections - Helicobacter pylori. Pathology Outlines. Topic Completed: 1 August 2012. Minor changes: 1 September 2020
Image sources