Transpapillary cholecystoscopy

This report describes the inspection of the inside surface of the gallbladder and the cystic duct by a newly available catheter and endoscopic system, with the aid of retrograde endoscopy. Using our newly developed endoscopic retrograde catheter system, we were able to cannulate the gallbladder in nearly 80% of all cases. No papillotomy is needed. Owing to its high degree of flexibility and relative robustness, coupled with brilliant optical quality, the new 0.5 mm miniscope permits careful and virtually complete inspection of even such small structures as the tortuous cystic duct.