Endoscopic submucosal dissection of superficial esophageal cancer expanding into the diverticulum

Abstract

Endoscopic submucosal dissection (ESD) is standard treatment for early esophageal cancer (EEC). Cancer located within the diverticulum, which has a thin or nonexistent muscular coating, is extremely rare. We describe successful ESD of esophageal diverticular cancer with a high risk of perforation. A 20‐mm EEC lesion expanding into the diverticulum was detected in the middle thoracic esophagus of a 73‐year‐old man. Positive‐pressure ventilation under general anesthesia and carbon dioxide insufflation were performed.

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