2023年6月7日 · High levels of a protein known as carbohydrate antigen or cancer antigen (CA) 19-9 may indicate the presence of certain malignant or benign health conditions. CA 19-9 was discovered in the early 1980s by researchers working to …

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.

Carbohydrate antigen 19-9 (CA19-9), also known as sialyl-Lewis A, is a tetrasaccharide which is usually attached to O-glycans on the surface of cells. It is known to play a role in cell-to-cell recognition processes.

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.

2023年11月4日 · This comprehensive guide aims to provide a detailed understanding of CA 19-9, its significance in cancer diagnosis and monitoring, the factors that can affect its levels, and the implications of CA 19-9 test results.

This test measures levels of CA 19-9 in the blood and it is most often used to monitor cancers of the pancreas or bile ducts. Because levels of CA 19-9 are also raised with other cancers and some benign conditions the test is not specific enough to be used for diagnosis.

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. Learn more about what CA 19-9 is for, how it's done, normal levels and what...

CA 19-9. 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.

2021年11月9日 · Cancer antigen 19-9 (CA 19-9) is a protein found in the blood. When found at elevated levels, CA 19-9 may indicate the presence of certain types of cancers or noncancerous conditions.

2012年3月27日 · The ca-19-9 blood test is a medical health test used to determine the presence of a specific marker in the blood. This marker, known as the ca-19-9 marker corresponds to cancer specific to the pancreas.