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Portal hypertensive biliopathy: Morphological classification[2]
| Type | Findings |
| I | Involvement of extrahepatic bile duct |
| II | Involvement of intrahepatic bile ducts only |
| IIIa | Involvement of extrahepatic bile duct and unilateral intrahepatic bile duct |
| IIIb | Involvement of extrahepatic bile duct and bilateral intrahepatic ducts |
