[Dysfunction of Oddi's sphincter, a problem diagnosis].

Problems of the diagnosis of Oddi's sphincter dysfunction are discussed based on experiences gained mostly in cholecystectomized patients. In every case the existence of an organic lesion interfering with free bile flow was ruled out. The functional nature of the lesion was verified by using the morphine-choleretic test combined with either dynamic hepatobiliary scintigraphy or percutaneous transhepatic cholangiography. Illustrative cases are demonstrated.