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

Figure 10 OCT image and corresponding histological sections of esophageal wall specimen with a thin nylon suture in the third layer. A: OCT image of esophageal wall specimen with a thin nylon suture in the third layer (more reflective layer). The marker of thin nylon suture (large white arrow) is recognized in the third layer. B: Corresponding histological section. The fragment of thin nylon suture 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.