Diverse phenotypic manifestations of small intestinal mucosa in non-infectious common variable immunodeficiency bowel disease: A case report

Figure 2 Whole-small bowel double-balloon enteroscopy. A: Roughness of the mucosa of the descending duodenum; B: Cracking changes of the villi after indigo carmine staining of the descending duodenum; C: Roughness and swelling of the mucosa of the horizontal segment of the duodenum, with cracking and mosaic changes of the villi atrophy; D: Mosaic-like changes in the jejunal mucosa.