The CA19.9 test measures the level of cancer antigen 19-9 (CA19.9) in the blood, which is primarily associated with pancreatic cancer. Elevated levels of CA19.9 may indicate the presence of pancreatic cancer and can also be elevated in other gastrointestinal cancers, as well as in benign conditions such as pancreatitis and liver disease. This test is often used in conjunction with imaging studies and clinical evaluations to monitor disease progression, assess treatment response, and detect recurrence in patients with pancreatic cancer. A blood sample is required for the CA19.9 test, and results are interpreted alongside other diagnostic information to provide a comprehensive evaluation of the patient’s health status.
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