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Abdominal enhanced CT images, A and C: Early phase. B and D: Delayed phase. A and B: There is an 18-mm solid mass in the pancreatic head. The mass was poorly enhanced in the delayed phase and obstructed the common bile duct and the main pancreatic duct. C and D: A 35-mm cystisin the pancreatic body and is connected to the main pancreatic duct.
