Biliary Stricture Bismuth Classification Calculator

Classify biliary strictures using the Bismuth-Corlette system for hilar cholangiocarcinoma and bile duct injuries. Types I–IV based on location and involvement of biliary confluence.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Classify biliary strictures using the Bismuth-Corlette system for hilar cholangiocarcinoma and bile duct injuries. Types I–IV based on location and involvement of biliary confluence

Each component has a specific meaning:

  • Bismuth-Corlette system — The bismuth-corlette system recorded for the scenario being assessed.

Note: Interpret the bismuth classification result against the thresholds and context described above.

How to Use

Enter the Bismuth-Corlette system for the scenario you are assessing. Classify biliary strictures using the Bismuth-Corlette system for hilar cholangiocarcinoma and bile duct injuries. Types I–IV based on location and involvement of biliary confluence. Use the bismuth classification result to inform your calculation.

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Frequently Asked Questions