I underwent an endoscopy and a small colon polyp was found. The doctor advised regular monitoring, not removal yet. Can hyperplastic polyps develop into cancer? (Hong, TP HCM)

Ms. Thanh, 50, who underwent chemo-radiotherapy for rectal cancer two years ago, recently had a tumor removed by robotic surgery after it invaded muscle and fat layers.

Kim, 92, who had rectal cancer, underwent robotic surgery to remove the tumor.