Effect of bilateral supraclavicular postoperative radiotherapy in middle and lower thoracic esophageal carcinoma

Figure 1 Abdominal surgical procedures. A: Bilateral diaphragmatic foot anatomy, focusing on clear phrenic lymph (16 set); B: Celiac artery anatomy, focusing on lymph node dissection of 17, 18, 19, 20 sets.

Figure 2 Thoracic surgical procedures. A and B: Mediastinal lymph node regions on the recurrent laryngeal nerve 2, 3, and 4 sets; C: Middle and lower mediastinal lymph nodes 7, 8, 9, 10, and 16 sets.

Figure 3 Radiation field included bilateral supraclavicular region.

Figure 4 Cause-specific survival curves for groups A and B.