CA 19-9 Blood Test (Pancreatic Cancer)
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Dados do National Institutes of Health
| CA 19-9 Blood Test (Pancreatic Cancer) : What is a CA 19-9 blood test? A CA 19-9 test measures the amount of a protein called CA 19-9 (cancer antigen 19-9) in a sample of your blood. CA 19-9 is a type of tumor marker. Tumor markers are substances made by cancer cells or by normal cells in response to cancer. High levels of CA 19-9 can be a sign of certain cancers of the digestive tract. These include cancers of the: - Pancreas. - Bile duct. - Colon and rectum. - Stomach. - Ovaries. - Bladder. However, high CA 19-9 levels can also be a sign of other conditions, including: - Gallstones, which can block your bile ducts. - Cholangitis, which is an infection of the bile ducts. - Pancreatitis, which is inflammation of the pancreas. - Cirrhosis (or scarring) of the liver. - Bile duct disease, including a blockage or infection. - Liver disease. - Cystic fibrosis. Because high levels of CA 19-9 can mean different things, health care providers don't use the results from a CA 19-9 test alone to screen for or diagnose cancer or other diseases. To do this, your provider will have to consider the results of a CA19-9 test as well as the results of other tests. Other names: cancer antigen 19-9, carbohydrate antigen 19-9, CA 19-9 measurement, CA 19-9 radioimmunoassay (RIA) | |
| Review Date: 20/01/2026 | Updated By: |