Figure 1.

Case illustration of endoscopic submucosal dissection (ESD) for superficial esophageal cancer. (A) endoscopic image showing esophageal varices (red arrow) at the lower esophagus. (B) the endoscopic image showing a 0-IIb lesion at the lower esophagus. (C) narrow band image of the lesion. (D) narrow band image and magnifying endoscopy revealing intraepithelial papillary capillary loop of type B1 and B2. (E) marking the margin of the lesion. (F) mucosal and submucosal excision at the anal side of the lesion. (G) the wound surface after ESD. (H) a fully covered metal stent was inserted after completion of ESD.