[A Case of Para-Aortic Lymph Node Metastases of Sigmoid Colon Cancer Treated with Complete Resection].

We present a case of sigmoid colon cancer with isolated para-aortic lymph node metastasis in a 67-year-old male patient. We treated this patient using simultaneous curative lymph node dissection with primary tumor resection. After inserting a transanal tube and decompressing the proximal colon for obstructive colitis, we performed high anterior resection with paraaortic lymph node dissection without neoadjuvant chemotherapy. The pathology results were as follows: tub2, SE, N3, H0, P0, M1(No. 216, 280), stage Ⅳ, curability B. Adjuvant chemotherapy with the XELOX regimen was administered, and the patient remains alive with no signs of recurrence 24 months after surgery. Although simultaneous dissection of para-aortic lymph node metastasis is controversial, curative dissection is advisable for localized cases.