Fig. 4

Histopathology results. A Esophagus: Lymphocytic infiltration was observed in the lamina propria(arrows), scale bar: 100 μm; B Gastric antrum: Numerous eosinophils infiltration can be seen in the lamina propria and submucosal layer., scale bar: 100 μm; C Duodenum: Focal accumulation of eosinophils in the lamina propria(arrows), scale bar: 100 μm; D Ascending colon: infiltration of eosinophils in the lamina propria, scale bar: 100 μm; E- F Transverse colon and Descending colon: There is a large amount of eosinophil infiltration in the lamina propria and submucosal layer, scale bar: 100 μm; G Transverse colon: eosinophilic infiltration in the muscularis mucosae(arrows), scale bar: 50 μm; (H) Descending colon: eosinophil degranulation(arrows), scale bar: 50 μm; (I) Descending colon: eosinophil abscesses(arrows), scale bar: 50 μm. Hematoxylin and eosin stain