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大肠癌(colorectal cancer,CRC)是临床上常见的恶性肿瘤。经济发达国家发生率较高,是西方国家第二位高发恶性肿瘤[1],美国大肠癌的病死率位居所有癌症死因的第3位[2];根据我国纳入肿瘤发生率监控的5个大城市近10年大肠癌的发生率变化,各地区大肠癌的发生率均有不同程度的上升,
Colorectal cancer (CRC) is a common clinical malignant tumor. High incidence of economically developed countries, is the second high incidence of malignant tumors in Western countries [1], the United States of America’s colorectal cancer mortality rate among the third of all cancer causes of death [2]; according to our inclusion of tumor incidence monitoring of 5 The incidence of colorectal cancer in the past 10 years in major cities has changed, and the incidence of colorectal cancer in various regions has risen to varying degrees.