Role of narrow band imaging in endoscopic submucosal dissection

Figure 3 Diagnosis of an esophageal micro-lesion. A: In the upper esophagus, a flare lesion measuring 4 mm was noted; B: When switching standard endoscopy to narrow band imaging-combined magnifying endoscopy, the lesion could be recognized as a clear brownish area; C: On magnifying endoscopy, a tumorous intra-epithelial papillary capillary loop pattern was visualized.