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Endoscopic view (A), routine histochemical (B) and immunohistochemistry analysis using CG3 (C) and Das-1 MoAbs (D) of the neo-terminal ileum from a second CD patient. Endoscopy detected recurrence of the anastomosis and neo-terminal ileum (grade 3), histology lesions compatible with changes of the ileal epithelium towards colonic epithelium and immunohistochemistry the expression of colonic epithelial antigens, compatible with colonic metaplasia.
