CA 19�9

Initially found in colorectal cancer patients, CA 19�9 has also been identified in patients with pancreatic, stomach, and bile duct cancer. Researchers have discovered that, in those who have pancreatic cancer, higher levels of CA 19�9 tend to be associated with more advanced disease. Noncancerous conditions that may elevate CA 19�9 levels include gallstones, pancreatitis, cirrhosis of the liver, and cholecystitis.