Johns Hopkins Pathology

 
Key Points:
  • Secrete mucin
  • Communicate with ducts

Intraductal Papillary Mucinous Neoplasms form papillary projections, secrete mucin, and are intraductal. They lead to ductal dilatation and may produce so much mucin that mucin can be seen oozing from the ampulla of Vater.

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