[A case of advanced colon cancer with metastases to both supraclavicular and para-aortic lymph nodes effectively treated by radiation and S-1 therapy].

We report the case of a 60-year-old woman with multiple lymph node metastases after ascending colon cancer who received radiation therapy and then chemotherapy with S-1. She was diagnosed with lymph node metastasis of the para aorta and left upper clavicle 10 months after surgery. We performed radiation therapy for the left upper clavicle (64 Gy)and para aorta (40 Gy).