Figure 3

Immunohistochemistry of terminal ileum specimens of patients with CD and UC.
Expression of mucin 2 (dark red) is substantially reduced in the terminal ileum of patients with active Crohn's disease (A) when compared to patients in clinical remission (C). In ulcerative colitis, patients with active disease show lower expression of trefoil factor 1 (light brown) in the terminal ileum (B) when compared to UC patients in clinical remission (D). Microscopic magnification is ×100 in all slides.