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. 2020 Nov 26;8(22):5690–5700. doi: 10.12998/wjcc.v8.i22.5690

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©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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Case 3 Endoscopy revealed a 28 mm × 22 mm submucosal lesion. Endoscopic ultrasound showed the lesion was derived from the muscular layer with cystic changes and was misdiagnosed as a cystic solid tumor.