Endoscopic submucosal dissection for early esophageal neoplasms using the stag beetle knife

Figure 3 Stag beetle knife used for esophageal endoscopic submucosal dissection in a 79-year-old man. Endoscopic appearance of a 35-mm, depressed lesion in the middle one-third of the esophagus (A) under white light (B) on a scatter image with Lugol’s iodine applied (C) with argon plasma coagulation markings; D and E: Use of the SB Knife Jr for full-circumferential incision; use of the SB Knife Short for (F) submucosal dissection and (G) hemostasis; H: En bloc resection of the lesion; I: Ulcer floor after resection.