Peroral cholangioscopy in choledocho-duodenostomy--patients using the pediatric fiberscope.

In patients with wide-open bilio-digestive anastomoses peroral cholangioscopy using the pediatric endoscope GIF-P2 is easily performed. The common bile duct is visualised down to the papilla and up to the distributaries of the hepatic ducts. The instrumentation channel allows mobilisation of incarcerated concretions, extraction of food particles (cholangiophytiasis) and guided biopsy of pathological findings. The experience in 12 patients with this method is promising.