RESUMEN
A laparoscopy-assisted right hemicolectomy and D3 lymph node dissection were performed to treat a 60-year-old woman with ascending colon cancer. Microscopically, the resected specimen was diagnosed as adenocarcinoma(tub1>tub2, pSS, pN1, M0). Adjuvant chemotherapy using UFT/UZEL was administered for 6 months. Enlarged para-aortic lymph nodes were identified by follow-up CT 2 years post operation, and a para-aortic lymph node dissection was performed. Microscopic examination revealed that the #216 b1 int lymph node contained poorly differentiated metastatic adenocarcinoma. After 36 courses of FOLFOX as adjuvant chemotherapy, the chemotherapy was discontinued because of an adverse event. She has remained well without recurrence for 5 years after the second surgery. There have been reports of survival improvements by surgical resections in patients with solitary para-aorta lymph node metastases of colorectal cancer. These observations suggest that the surgical therapy may have contributed to the improved prognosis in the present case.