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大肠癌的复发率在我国呈逐年增高趋势,治疗后复发和转移是导致死亡的重要因素,也是治疗失败的主要原因之一。结肠癌术后复发主要表现为吻合口复发和腹腔内复发。直肠癌的复发多为术后吻合口复发和盆腔复发结节。肝脏是结直肠癌最常见的转移发生部位。有报道指出,Ⅱ~Ⅲ期的结肠癌复发率可高达30%~40%,直肠癌的术后总的复发率为12%~43%。
The recurrence rate of colorectal cancer has been increasing year by year in our country. Recurrence and metastasis after treatment are important factors leading to death and one of the main reasons for treatment failure. Recurrence of colon cancer mainly manifested as anastomotic recurrence and intraperitoneal recurrence. The recurrence of rectal cancer was mostly postoperative anastomotic recurrence and pelvic recurrence nodules. The liver is the most common metastatic site of colorectal cancer. It has been reported that the recurrence rate of stage II to III colon cancer can be as high as 30% to 40%, and the total recurrence rate of rectal cancer is 12% to 43%.