Fig. 3

Pathological findings: a-d at the onset of enteritis; (e-f) at the last follow-up in March 2018. a, b Pathological images of the duodenum at the onset of enteritis (× 100, × 200): acute and chronic inflammation with some cryptitis, few goblet cells and moderate villous atrophy. c, d Pathological images of the neo-ileum through the ileostomy at the onset of enteritis (× 100, × 200): acute and chronic inflammation with cryptitis, some irregular crypt structures, mild villous atrophy, few goblet cells. e-f Pathological images of the duodenum (e) and neo-ileum (f) at the last follow-up: recovery of the chronic inflammation, number of goblet cells and villous structures; cryptitis is not observed