SECM and histopathological images of BE stained with 0.6% acetic acid. (A) Large-area SECM image shows columnar epithelium (arrowhead) and squamous epithelium (arrow). (B) Histopathologic image demonstrates squamoglandular junctional mucosa. (C) High-magnification SECM image shows the presence of goblet cells (arrow). (D) High-magnification histopathological image shows BE with the presence of goblet cells (arrow). Scale bars represent 250 μm. Reprinted with permission from Kang D, et al..