Grade 1 | ▸ Diagnostic cholangiography
▸ Biliary cytology
▸ Stone extraction ≤10 mm
▸ Dilatation of stenosis/stent placement/nasobiliary drain in extrahepatic strictures | ▸ Diagnostic pancreatography
▸ Pancreatic cytology |
Grade 2 | ▸ Stone extraction >10 mm
▸ Dilatation of stenosis/stent placement/nasobiliary drain in hilar tumours or benign intrahepatic strictures | ▸ Cannulation of papilla minor |
Grade 3 | ▸ BII anatomy
▸ Intrahepatic stone extraction
▸ Stone extraction with lithotrypsy | ▸ Therapeutic pancreatic procedures, including pseudocyst drainage |