Korean J Gastroenterol.  2017 Nov;70(5):265-268. 10.4166/kjg.2017.70.5.265.

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

  • 1Division of Gastroenterology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea. jidmd@uuh.ulsan.kr


No abstract available.

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  • 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.

  • 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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