Figure 3

Figure 3

 Normal human small (A, B) and large (C, D) intestinal mucosa. Immunohistochemical stain for α-smooth muscle actin. Pericryptal fibroblast sheath formed by pericryptal fibroblasts is closely embracing the epithelial cells of normal intestinal crypts. Magnification ×100 (A, C); ×400 (B, D).