Jun 7, 2023 · 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 …

Aug 11, 2022 · 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.

Sep 30, 2023 · CA19-9 is a relative number and not compatible to other patients values. While you may consider 2,000 high in your situation, it would be low for someone whose measurement is 800,000. Looking at it as a percentage increase/decrease might be a better way in comparing one’s own values.

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 (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.

CA 19-9 is widely used as a tumor marker related to pancreatic ductal adenocarcinoma. Pancreatic cancer (PC) is the fourth leading cause of cancer deaths worldwide, with a 5-year survival rate of less than 7% 2, 21. CA 19-9 levels are elevated in more than 80% of patients with advanced PC 12.

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.

Jul 18, 2024 · 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 …

Feb 14, 2025 · 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.