A useful technique using a traction device and a rotatable sphincterotome for difficult biliary cannulation of an intradiverticular papilla

An intradiverticular papilla can make biliary cannulation challenging during endoscopic retrograde cholangiopancreatography. With an accompanying video, Asano and colleagues describe their technique using a traction device to expose the papilla and a rotatable sphincterotome to align with the bile duct axis, achieving successful biliary cannulation without adverse events.