[Case contribution on intraoperative cholangiography]

An assessment is made of the systematic application of intraoperative cholangiography in the light of a consecutive series gathered over a period of four years. The importance of employing this technique as a routine measure is clearly demonstrated by the results. If properly performed, it greatly reduces unnecessary choledochotomy, diminishes the incidence of overlooked calculi, and leads to the detection of papillo-oddian diseases.