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. 2023 Nov 20;55(Suppl 1):E1184–E1185. doi: 10.1055/a-2197-9514

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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 — Images during underwater endoscopic submucosal dissection to treat an early pharyngeal cancer showing: a submucosal injection being performed; b a mucosal incision being made; c the application of dental floss traction; d underwater submucosal dissection being performed; e the postoperative appearance; f the macroscopic appearance of the resected tumor.