Reviewed: 13. Juli 2026
CA 19-9 Cancer Antigen 19-9 (CA 19-9)
Unit: U/ml
Quick Explanation
CA 19-9 is mainly measured in connection with the pancreas and bile ducts, but can also rise with bile congestion, inflammation, or other benign conditions. It's used more often for monitoring than initial diagnosis.
📊 Reference Values
ℹ️ Reference ranges may vary slightly between laboratories. Always compare your value with the reference range from your own lab report.
🔍 Possible Causes
Value too high — possible causes
- ·Bile congestion
- ·Pancreatitis
- ·Liver disease
- ·Pancreatic cancer (one of several possible causes)
This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.
🩺 Questions for Your Doctor
- →Which cause is most likely for my elevated value?
- →Is pancreatic imaging useful?
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Medical Disclaimer
The content on this page is for general information only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for health-related questions. Lab values should always be assessed in the context of your personal medical history.