Pancreatic serous cystadenoma is a benign tumour of pancreas. It is usually found in the tail of the pancreas, and may be associated with von Hippel-Lindau syndrome.In contrast to some of the other cyst-forming tumors of the pancreas (such as the intraductal papillary mucinous neoplasm and the mucinous cystic neoplasm), serous cystic neoplasms are almost always entirely benign. [Source: Wikipedia 
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