Clin Endosc.  2017 May;50(3):250-253. 10.5946/ce.2016.109.

Evaluation and Endoscopic Management of Esophageal Submucosal Tumor

• Ko WJ
• Song GW
• Cho JY

• KMID: 2388821
• DOI: http://doi.org/10.5946/ce.2016.109

Abstract

Submucosal tumors (SMTs) originate from tissues that constitute the submucosal layer and muscularis propria, and are covered by normal mucosa. Esophageal SMTs are rare, accounting for <1% of all esophageal tumors. However, the recent widespread use of endoscopy has led to a rapid increase in incidental detection of SMTs in Korea. Esophageal SMTs are benign in ≥90% of cases, but the possibility of malignancies such as gastrointestinal stromal tumor and malignant leiomyosarcoma still exists. Therefore, patients undergo resection in the presence of symptoms or the possibility of a malignant tumor. For resection of esophageal SMTs, surgical resection was the only option available in case of possible malignancy, but minimally invasive surgery by endoscopic resection is becoming more preferable to surgical resection with the development of endoscopic ultrasonography, endoscopic techniques, and other devices.

Keyword

Submucosal tumor; Endosonography; Endoscopic resection

MeSH Terms

Endoscopy
Endosonography
Gastrointestinal Stromal Tumors
Humans
Korea
Leiomyosarcoma
Minimally Invasive Surgical Procedures
Mucous Membrane

Figure

• 

  Fig. 1. Tru-Cut biopsy using a flexible endoscope for the diagnosis of submucosal tumor (SMT). (A) SMT observed by using a flexible endoscope. (B) On endoscopic ultrasonography, the SMT is located in the muscularis propria. (C) Tru-Cut biopsy using a flexible endoscope. (D) Specimens.

• 

  Fig. 2. Application of the three-dimensional printing technique for the side-hole cap during endoscpic mucosal resection with a cap-fitted endoscope applied to a submucosal tumor (SMT). (A) An esophageal SMT. (B) Submucosal injection. (C) Snaring for SMT. (D) Resection of the lesion.

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