Altered molecular pattern of mucosal healing in Crohn’s disease fibrotic stenosis

Figure 3 Immunohistochemical staining of basic fibroblast growth factor in the lamina propria (A) and the muscular layer (B). A: Positive cells are stained red (aminoethylcarbazole) and negative ones blue (haematoxylin). A massive staining of stromal cells is observed, but also epithelium is involved by molecule expression (× 100); B: Positive cells are observed in the muscle and endothelium (× 100).