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. 2024 Dec 3;56(Suppl 1):E1067–E1068. doi: 10.1055/a-2471-7995

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2 — Endoscopic full-thickness resection (EFTR) using local injection into tissue outside the gastrointestinal stromal tumor (GIST) capsule. The GIST was located underneath the mucosal defect left by endoscopic submucosal dissection. a The muscle layer was incised away from the tumor. b A clip with a line was placed in the normal muscle layer on the anal side. c The submucosal tumor was exposed. d Local injection into tissue at an appropriate distance from the submucosal tumor to allow resection of tissue. e Full-thickness defect after EFTR. f Resected tumor specimen. g Site after closing the full-thickness defect using the reopenable clip over-the-line method (ROLM). h Full-thickness defect completely closed after a second ROLM.