Hi doctor. I went to the doctor for Barrett's esophagus, I want to know if the transition from Barrett's esophagus to esophageal cancer is fast? The doctor performed an endoscopy and took medicine but did not take a biopsy.

Hello doctor, my mother went to the doctor and it was concluded that Barrett's esophagus is short and has a high risk of cancer. So the doctor asked me, is Barrett's esophagus a dangerous cancer risk?