[Ultrasonic study of pancreatic duct dilatations].

The analysis of the pancreatic duct constitutes now a routine step in the evaluation of the pancreas. The display of a dilatation above a cephalic tumor has no clinical application. But, on the other hand, in case of chronic pancreatitis, the display of a dilated duct, whose pattern is often particular ("zip-lie duct"), will be taken into account if an ERCP is considered. Lastly, the sonographic display of a canalar lithiasis is possible.