After the removal of adenomatous colon polyps, it is possible for them to become cancerous if they recur.
According to the research findings of our scholars, polyps still have a high recurrence rate even after complete resection. Most intestinal polyps recur within 4 years after endoscopic resection, and some even report recurrence within 2 years.
If adenomatous polyps recur after resection, the cancer rate is related to the size of the polyp, the degree of atypical hyperplasia, and the content of villous components. It is generally believed that the cancer rate of 1~2cm adenomas is around 10%, and the cancer rate of >2cm adenomas can be as high as 50%. Moreover, the higher the degree of atypical hyperplasia and the higher the content of villi, the more likely it is to become cancerous.
It is recommended to review regularly to exclude recurrence of polyps and standardize the treatment.