Catalog
Helicobacter-pylori associated duodenal ulcer
Link to WHO Definition
Helicobacter-pylori associated duodenal ulcer – http://id.who.int/icd/entity/1358822175
Helicobacter pylori (H. pylori) is a gram-negative bacillus that is found in the mucous layer overlying gastric epithelium, within epithelial cells and attached to mucous cells, leading to inflammation. In the case of duodenal ulcers, H. pylori is believed to infect the gastric antrum or ectopic gastric mucosa in the duodenum. This is associated with increased acid production and duodenal ulceration.