Endoscopic submucosal dissection for esophageal cancer found on a submucosal tumor

Abstract

A man in his 50s complaining of heartburn underwent upper gastrointestinal endoscopy. A submucosal tumor (SMT) of 10 mm in size was found on the right posterior wall of the thoracic esophagus, and a lesion with a reddish border was found on the apex.

Endoscopic ultrasonography showed the SMT as a hypoechoic mass. Then, we diagnose this lesion as intramucosal cancer on the SMT. The intramucosal cancer along with the SMT was curatively resected by endoscopic submucosal dissection (ESD).

ESD for esophageal cancer on a SMT is rare. We report this case with a literature review.