Making the transition from endoscopic submucosal dissection fellowship to independent practice: successful ESD of a large near-circumferential rectal lesion

摘要

Successful transition from endoscopic submucosal dissection fellowship to independent practice. Endoscopic view of a 10-cm laterally spreading tumor in the rectum. Extension of the distal margin to within 1 mm of the dentate line. Extension of the proximal margin to the first valve of Houston. Initial mucosal incision at the dentate line. Use of pocket creation approach for ( ) submucosal dissection. Endoscopic appearance of defect after successful en bloc resection. Resection specimen.