Figure 4

Submucosal tunnel endoscopic resection of esophageal gastrointestinal stromal tumors. (A) Endoscopic manifestations of esophageal GIST. (B) Establish a tunnel portal. (C) Establish a tunnel below the tumor. (D) Stripping and completely exposing the tumor. (E), (F) snare complete resection of the tumor. (G) The appearance of the wound after the titanium clip closed the tunnel mouth. (H) The diameter of the resected specimen was about 3cm.