结直肠癌已成为胃肠道最常见的恶性肿瘤,因此,所有注意力都集中在早期诊断上,尤其自从大便隐血试验和结肠镜的息肉摘除术用于普检以来已经证明分别是对早期发现和癌症预防的有效方法。毫无疑问,因有上述两种检查方法,结直肠癌在 Dukes A 和 B 期作出诊断的数目已大大增加。除了癌症危险 Colorectal cancer has become the most common malignancy of the gastrointestinal tract. Therefore, all attention has been focused on early diagnosis, especially since the fecal occult blood test and polypectomy colonoscopy have been used for routine screening. And effective methods for cancer prevention. Undoubtedly, the number of diagnoses of colorectal cancer at Dukes A and B has increased significantly due to the above two screening methods. In addition to cancer risk