Most colon cancers originate from precancerous lesions that can be detected and removed by colonoscopy, but cancers after colonoscopy (interval cancers) still account for 9% of all colon cancers. Incomplete colonoscopies, missed diagnoses, rapid Progressive lesions, iatrogenic tumor dissemination, and incomplete resection of lesions may be causes of interval colon cancer, emphasizing the importance of accurate detection and complete resection of all polyps.
Content points:
1. Adjuvant chemotherapy after colon cancer surgery 2. When does colon cancer require targeted therapy?
At present, the preferred method for the treatment of colon cancer is radical surgery, followed by radiotherapy and chemotherapy.
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