A Case of Sigmoid Cancer with Six Asynchronistic Metastases to Multiple Organs That Were Resected through Four Surgeries

: A 49-year-old man underwent sigmoidectomy for the diagnosis of type 2 sigmoid cancer. Pathological findings showed a tumor 3.5×4.0cm in size, type 2, pSS, ly2, v1, pN0, cH0, cP0, cM0, pStageⅡ, R0. Asynchronistic metastases to the liver and lungs were subsequently found. Left hepatectomy was performed for 1 liver metastasis, and 4lung metastases were resected through 3 surgeries. A subcutaneous tumor in an abdominal wall scar was also resected in the 4th surgery for metastasis resection. All pathological diagnoses were metastases from sigmoid cancer, and complete curative resection was possible. The final surgery was performed 1 year and 1 month prior, and the patient has now survived without recurrence for 10 years and 2 months after sigmoidectomy. Chemotherapy was not administered during the whole course. This case shows that longterm survival is possible with repeated resection of recurrent metastasis of sigmoid cancer.