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Kim and Jeong: Esophageal Leiomyoma Originating in the Muscularis Propria Layer Resected by Endoscopic Submucosal Dissection
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The Korean Journal of Gastroenterology 2017; 70(5): 265-268.

Published online: 24 November 2017

DOI: https://doi.org/10.4166/kjg.2017.70.5.265

Esophageal Leiomyoma Originating in the Muscularis Propria Layer Resected by Endoscopic Submucosal Dissection

Jae Hee Kim, In Du Jeong

Division of Gastroenterology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.

Correspondence to: In Du Jeong, Division of Gastroenterology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, 877 Bangeojinsunhwando-ro, Dong-gu, Ulsan 44033, Korea. Tel: +82-52-250-7029, Fax: +82-52-250-7048, jidmd@uuh.ulsan.kr

Copyright © 2017. Korean Society of Gastroenterology

Korean Society of Gastroenterology

(open-access):

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Figures and Tables

Fig. 1

Endoscopic submucosal dissection process for treating an esophageal subepithelial tumor (SET). (A) A 2.5-cm esophageal SET located 23 cm from the central incisor. (B) An endoscopic ultrasound image showing a homogeneous hypoechoic tumor in the muscularis propria. (C) The covering mucosa of the SET stripped off by a coagulation snare. (D-F) The insulated-tip knife used to separate the tumor from the muscularis propria. (G) The tumor was completely separated from the esophageal wall. (H) Resected specimen, a 2.5×2 cm whitish tumor.

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Fig. 2

Microscopic findings of a resected tumor. (A) Microscopically, the tumor was composed of irregularly oriented bundles of smooth muscle cells arranged in a whorl pattern (hemotoxylin and eosin, ×100). (B) Immunohistochemical stain (desmin, ×100) for desmin revealed positivity in the tumor cells.

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