Feasibility of gallbladder lesion visualization using a novel ultrafine peroral cholangioscopy: A preliminary investigation

Endoscopic visualization of gallbladder lesions by the traditional peroral cholangioscopy (POCS) during the endoscopic retrograde cholangiopancreatography process is challenging. In the present study, we evaluated the feasibility of a newly designed POCS with an ultrafine outer diameter that facilitates gallbladder visualization.