Hi, Thanks for writing in. Without complete details of malignancy it is difficult to discuss accurately because of the wide nature of tumors and their types. It is suggested that you make an appointment with the surgical or medical oncologist and discuss her condition in detail. The pathological report must be discussed regarding the malignancy and possible staging of the disease. It is not clear if your mother had large bowel cancer. Should her reports show colon cancer then she should regularly get CEA level in blood done to know if her cancer is still there. She might also have to do ultrasound scan abdomen and chest X ray regularly. Many patients with colon cancer have disease spread to liver and other organs if not treated aggressively. Please discuss this with her doctor in detail. Please do not worry.