2022年8月11日 · 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 in your body.

The CA 19-9 Radioimmunoassay (RIA) is a simple blood test that measures the level of tumor-associated antigens found in the blood. CA 19-9 associated antigen levels are elevated in many patients with pancreatic cancer.

CA 19-9 is high in most people with advanced pancreatic cancer but it can also be raised in other cancers including bowel, stomach, colorectal, lung, thyroid, cancers as well as other non-malignant conditions such as gallstones, pancreatitis, cystic fibrosis and liver disease.

CA 19-9 (Carbohydrate Antigen 19-9) is a protein that is produced by normal cells but is often elevated in certain types of cancers. It is primarily associated with pancreatic cancer but can also indicate other conditions like gallbladder cancer, liver disease, or benign disorders.

2024年7月18日 · CA 19-9 is a blood test that evaluates the presence of this protein in the blood. It is usually produced by cancer cells, but can also become high in the blood with gallbaldder stones, pancreatitis or cirrhosis.

The best-validated pancreatic cancer biomarker is carbohydrate antigen 19-9 (CA 19-9), a Lewis A blood group antigen that is overexpressed in 81% of patients with pancreatic cancer. 2-4 CA 19-9 is also associated with other GI cancers, including bile duct, liver, gastric, and colorectal. 4 Sensitivity of CA 19-9 for diagnosis of these cancers ...

The CA 19-9 marker is associated with cancers in the colon, stomach, and bile duct. Elevated levels of CA 19-9 may indicate advanced cancer in the pancreas , but it is also associated with noncancerous conditions, including gallstones, pancreatitis, cirrhosis of the liver, and cholecystitis.

2025年2月14日 · CA 19-9 (carbohydrate antigen 19-9 or cancer antigen 19-9) is a serum antigen (monosialoganglioside) that has increased diagnostic use in the management of several malignancies, mainly of hepatopancreaticobiliary origin. It is non-specific, however, and can rise in both malignant and non-malignant conditions.

3 天之前 · CA 19-9 production is influenced by genetic variations in glycosylation-related enzymes, particularly those involved in Lewis blood group antigen synthesis. The FUT2 and FUT3 genes encode fucosyltransferases, which add fucose residues to glycan precursors, a necessary step in forming sialyl-Lewis A (sLe^a), the molecular structure of CA 19-9.

Antigens are substances that stimulate your body's immune system. Some types of cancer cells send CA 19-9 into the blood, where it can be measured with this test. A high amount of CA 19-9 is most often caused by pancreatic cancer. But it can also be caused by other types of cancer.