结肠直肠癌是发达国家最具破坏性的恶性病变之一，其全球病死串男性为3110万，女性为21／10万。在西半球其发病串仅次于肺癌和乳腺癌。美国1995年新诊断为结肠直肠癌的病人达13．8万例。约20％的患者发生肝转移，若不予治疗，结肠直肠癌肝转移的预后令人失望。据1151例病人随访 Colorectal cancer is one of the most destructive malignancies in the developed world. Its global death toll is 31.10 million for men and 21/10 for women. In the Western Hemisphere, its incidence is second only to lung cancer and breast cancer. In the United States, there were 138,000 newly diagnosed patients with colorectal cancer in 1995. About 20% of patients develop liver metastases. If left untreated, the prognosis of colorectal liver metastases is disappointing. Follow-up of 1151 patients