Use of tunnel endoscopy for diagnosis of obscure submucosal esophageal adenocarcinoma: A case report and review of the literature with emphasis on causes of esophageal stenosis

Figure 5 Microscopic images. In smooth muscle cells, abnormal glands, dense nuclei of glandular epithelial cells, irregular glandular cavities, and fibrous hyperplasia were seen (hematoxylin and eosin staining; A, B, and C, magnification × 40, × 100, and × 200, respectively).