[The value of endoscopic retrograde cholangiopancreatography in negative or undetermined cholecystocholangiography].

In 299 patients with negative cholecystocholangiogram, endoscopic retrograde cholangio-pancreatography (ERCP) was performed. In obstructive jaundice ERCP is the method of choice, while in cholestasis it is indicated if the intravenous cholecystocholangiogram is insufficient. In unclear abdominal conditions and in "postcholecystectomy syndrome" ERCP may be carried out after other abdominal diseases have been ruled out.