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. 2013 Jan-Mar;2(1):11–15. doi: 10.7178/eus.04.004

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Copyright: © Endoscopic Ultrasound

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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The tunnel type endoscopic submucosal dissection procedure and EUS in tunnel. A: Muscle layer tumor viewed on EUS; B: Longitudinal mucosal incision; C: Submucosal tunnel creation; D: Endoscopic view of tumor in tunnel, difficult to distinguish from the muscular layer or aortas; E: Tumor(T) identified by EUS in tunnel. A small amount of irrigated saline leaked through the muscular layer of esophagus to the mediastinal space (arrow); F: Tumor dissection in the tunnel; G: Mucosal entrance closing; H: Tumor ex vivo. EUS: endoscopic ultrasound. T: tumor.