Abstract
Reported herein is a unique case of pancreatic serous cystadenoma extend into the main pancreatic duct (MPD). The patient was a 82-year-old man with history of acute pancreatitis. Laboratory data including tumour markers showed within almost normal lange. Abdominal ultrasonography demonstrated a solid tumor (2cm in diameter) in the pancreas head. The solid tumor showed a hypervascular pattern but had no obvious cystic component in dynamic CT. Curved planar reformatted images obtained by CT and MRCP images revealed local stenosis of MPD at the head of pancreas. EUS and IDUS images showed that the tumor with increased level of internal echo extended into MPD.
A pylorus-preserving pancreatoduodenectomy was preformed. In Macroscopical inspection of the surgical specimen, the tumor measured 30×25×20mm had numerous and various sized cystic components. Histopathologically, the epithelium columular cells of the cysts were glycogen-rich and positive for PAS staining, and the tumor cells partially compressed and extended into the MPD.
