Progress in diagnosis and treatment of local recurrence after radical radiotherapy for esophageal cancer

The diagnosis of local recurrence after radiochemotherapy for esophageal cancer requires the combination of multiple imaging methods (esophageal X-ray, computed tomography, endoscopic ultrasonography, and positron emission tomography-computed tomography), dynamic changes in esophagoscopy, and biopsy. The main treatment of recurrence includes salvage surgery, radiochemotherapy, endoscopic mucosal resection, and chemotherapy. The overall survival rate after the above treatment is improved compared with palliative care but still unsatisfactory. Early diagnosis of recurrence is fundamental for improved treatment outcomes. (authors)