The small intestine is made up of the duodenum, jejunum, and ileum. Together with the esophagus, large intestine, and the stomach, it forms the gastrointestinal tract. In living humans, the small ...

At histology, chronic inflammation of the duodenal mucosa with blunting or absence of villi accompanied by crypt hyperplasia is characteristic. Although villous atrophy is not exclusive of celiac ...

They found sampling in the lumen vs. mucosa and subject were significantly associated with duodenal community variation, whereas having or not having functional dyspepsia, PPI and demographics ...

the latter being associated with hyperacidity and duodenal ulcer as well as Helicobacter pylori infection, and characterized at histology by metaplastic gastric surface epithelium comprising ...