Fig. 2

Pathological figures of case 1, 3 and 4. (A) HE 400 times, (B) HE 100 times. Shows that the villi of duodenal bulb, descending part and terminal ileum mucosa are flat or disappear, some crypts are damaged, goblet cells are significantly reduced, apoptotic cells are occasionally seen at the bottom of the crypt, and a large number of lymphocytes infiltrate into the lamina propria. Pathology showed celiac-like changes (C) HE 400 times, (D) HE 100 times The mucosal villus is severely atrophic, the lamina propria can be seen with more lymphoplasma cells and a small amount of neutrophils infiltration, crypt hyperplasia, no apoptosis, and increased intraepithelial lymphocytes