Outcome of a session of extracorporeal shock wave lithotripsy before endoscopic retrograde cholangiopancreatography for problematic and large common bile duct stones

Figure 2 Common bile duct stone clearance was assessed after each endoscopic retrograde cholangiopancreatography session using procedure reports, plain films, endoscopic retrograde cholangiopancreatography films and/or abdominal magnetic resonance cholangiopancreatography. A: Pre-ESWL large common bile duct stones were very large; B: Post-ESWL reduction in diameter of CBD stones; C: Stones were tracked by a basket during the following ERCP; D: CBD was cleared successfully. ESWT: Extracorporeal shockwave lithotripsy; ERCP: Endoscopic retrograde cholangiopancreatography; CBD: Common bile duct.