MSFinals-1807
A 55-year-old woman comes to your GP clinic for the third time in the past month. She reports experiencing bloating, mild abdominal discomfort, and a decreased appetite. You have previously referred her for a colonoscopy, which did not reveal any signs of malignancy. However, she remains highly concerned about cancer due to her family history, as her mother, grandmother, and sister have all had breast cancer. Which marker would be the most suitable?