Benign esophageal stricture after thermal injury treated with esophagectomy and ileocolon interposition

Figure 4 Histopathological findings. A: Massive fibrosis and infiltration of plasmacytes and lymphocytes were primarily detected in the submucosa throughout the esophagus (hematoxylin and eosin stain (H and E); original magnification, × 11); B: Massive fibrosis extended to the muscularis propria and adventitia along nearly all of the esophagus. The lumen was largely covered by regenerative squamous epithelium with scattered erosion (Masson`s trichrome stain; original magnification, × 11).