Salvage endoscopic submucosal dissection for esophageal adenocarcinoma arising during radiofrequency ablation.

Radiofrequency ablation is a recommended treatment option for residual Barrett's esophagus after endoscopic resection of a visible lesion. We herein report 3 cases of esophageal adenocarcinoma arising during the course of radiofrequency ablation, all of which were successfully resected by endoscopic submucosal dissection. Partial or suboptimal response to radiofrequency ablation or early recurrence of Barrett's mucosa after radiofrequency ablation should raise suspicion for adenocarcinoma and lead to consideration of en bloc resection by endoscopic submucosal dissection.