[A case of advanced colon cancer with multiple liver metastases treated by two-stage laparoscopic surgery].

We report a case of advanced colon cancer with multiple liver metastases treated by two-stage laparoscopic surgery. An 82-year-old woman, whose main complaint was constipation, was diagnosed with stage IV sigmoid colon cancer. With the aim of decompressing the colon, a transanal decompression tube was inserted. She underwent laparoscopic-assisted sigmoidectomy and D3 lymph node dissection, and an ileostomy was created. Systemic chemotherapy was administered immediately after the operation. After 4 courses of chemotherapy, she underwent the second operation, i.e., laparoscopic- assisted partial hepatectomy and radiofrequency ablation of liver metastases. Cases of obstructive colon cancer are more advanced than cases of non-obstructive colon cancer. Systemic treatments are required after the resection of primary tumors. We aim to improve the prognosis of patients with obstructive colon cancer by the use of laparoscopic surgery.