Identification of the layered morphology of the esophageal wall by optical coherence tomography

Figure 5 OCT image and corresponding histological sections of esophageal wall specimen injected with cyanoacrylate adhesive into the third layer. A: OCT image of esophageal wall injected with cyanoacrylate adhesive into the third layer (less reflective layer). The injection location of cyanoacrylate adhesive into the third layer is clearly recognized. B: Corresponding histological section. The cyanoacrylate adhesive is observed in the muscularis mucosa (HE, original magnification × 4). C: Corresponding histological section (EM, original magnification × 4). The white and black bars represent 1 mm.