[Diagnoses and treatments for recurrent colon cancer]

The incidence of recurrence after curative resection in colon cancer is approximately 20%, and liver metastasis is the most common. Diagnostic modalities including recent techniques for recurrent colon cancer for example also in the liver, are not complete to point out minimal lesions. Thus, it is very hard to evaluate that recurrent lesions are localized or not. On the other hand, only regional treatments such as surgical resection and hepatic infusion chemotherapy are effective for this cancer, and the effect of systemic chemotherapy including 5-FU-LV and new agents are still now limited. From these points of view, for better management of patients with recurrent colon cancer, deeply understandings of incompleteness of imaging diagnoses and well application of local treatments are required.