Restenosis following balloon dilation of benign esophageal stenosis

Figure 1 In the experimental group, on the 5th day after the procedure, muscle layers of the rat esophagus exhibited an inflammatory reaction. H&E stain, × 4.

Figure 2 In the experimental group, on the 5th day after the procedure, the basal cells of the squamous epithelium in rat esophagus exhibited strong PCNA expression. Immunostaining, × 4.

Figure 3 In the experimental group, on the 30th day after the procedure, the substratum of the rat esophageal mucosa and muscle layers exhibited strong FN expression. H&E stain, × 4.