A blood-based marker called colon cancer-specific antigen-2 (CCSA-2) may be an accurate indicator of colorectal cancer, according to preliminary research led by Johns Hopkins University in collaboration with the University of Pittsburgh. Colorectal cancer is one of the most common forms of cancer, diagnosed in more than 150,000 people each year in the United States. Although colonoscopy can detect the disease at an early stage when it is most curable – and even prevent it by finding and removing...