Endoscopic Submucosal Tunnel Dissection for Large Gastric Neoplastic Lesions: A Case-Matched Controlled Study

Figure 1

ESD procedure. (a) Lesion under light endoscopy. (b) Marking the margin. (c) Circumferential incision. (d) Submucosal dissection. (e) Hemostasis with hot biopsy forceps. (f) The artificial ulcer after complete removal of the lesion. (g) The muscularis propria damage. (h) The damage was closed with clips to prevent perforation.

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