Pancreatic reflux during radiomanometry is more frequent during acute and chronic pancreatitis. In acute pancreatitis, it is due in 1 case out of 3, to distal obstruction which must be overcome very rapidly. There is no prognostic significance. Santorini's duct when opacified and when it opens into the duodenum, permits one to suggest a better prognosis than in cases of canalicular pancreatitis. In chronic pancreatitis, reflux is twice as common and 3 times more often organic. When Wirsung's duct is dilated, there is almost always a distal obstacle at the level of the sphincter of Oddi due to a gall stone. If chronic pancreatitis is associated with gall stones, sphincterotomy should be carried out.
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