Fig. 5

Clinical course after endoscopic resection. a In the EMR group, the piecemeal resection rate was relatively high, and local recurrence occurred in 17.9% of patients who did not undergo both en bloc and complete resection. b In the ESD group, local recurrence occurred in about 1.82% of patients with both en bloc and complete resection, which is lower than the rate in the EMR group. EMR, endoscopic mucosal resection; ESD, endoscopic submucosal dissection; HGD, high-grade dysplasia; LGD, low-grade dysplasia