| ERCP | endoscopic retrograde cholangiopancreatography |
| FNA | fine needle aspiration |
| EUS | endoscopic ultrasonography |
| EUS-CDS | EUS choledochoduodenostomy |
| EUS-FNB | EUS fine needle biopsy |
| EUS-BD | EUS-guided biliary drainage |
| EUS-HGS | EUS hepaticogastrostomy |
| EUS-Rv | EUS rendezvous |
| MDO | malignant duodenal obstruction |
| PDA | pancreatic ductal adenocarcinoma |
| PTBD | percutaneous transhepatic biliary drainage |
| SEMS | self-expandable metal stent |
| FC-SEMS | fully covered self-expandable metal stent |
| US | ultrasound |