Analysis of human pure pancreatic juice in chronic pancreatitis and cancer of the pancreas.

Pure pancreatic juice was collected from 8 control subjects, 12 patients with chronic pancreatitis and 4 patients with cancer of the pancreas by endoscopic retrograde cannulation of the papilla. Samples were collected at 1 minute intervals for 20 minutes after rapid intravenous injection of secretin (Eisai, 1 U/kg) and for 10 minutes after rapid intravenous injection of CCK-PZ (Boots, 1 U/kg).