No villi were seen (Fig. 2). In contrast, nodules in the terminal ileum associated with lymphoid hyperplasia have normal villi on the mucosal surface as shown in the upper left panel.

The ileum is the final and narrowest part of the small intestine, continuing from the jejunum to the caecum of the large intestine separated by the ileocoecal valve. Absorption of vitamin B12 ...

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 ...