Figure 15. (A—D) Dynamic MRCP images obtained in a patient with progressive enhancement of the pancreatic parenchyma (arrowheads) after secretin administration. A was acquired before the administration of secretin, and B was acquired 2 minutes after. (1—3) Corresponding ERCP images show a progressive increase in pancreatic duct caliber during retrograde injection of contrast material, which might be related to pancreatic tissue hypertension. Side-branch morphology (arrows) is compatible with early changes due to chronic pancreatitis.