Table 3.
SUMIHDEHD” score derived from cross-referencing the assigned IHD and EHD scores as per the Amsterdam classification; IHD intrahepatic duct, EHD extrahepatic duct
| IHD | ||||
|---|---|---|---|---|
| 0 | I | II | III | |
| EHD | ||||
| 0 | - | 2 | 3 | 3 |
| I | 1 | 2 | 3 | 3 |
| II | 2 | 3 | 3 | 4 |
| III | 3 | 3 | 4 | 5 |
| IV | 3 | 3 | 4 | 5 |
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