Pseudomyxoma Peritonei Caused by Intraductal Papillary Mucinous Neoplasm With Extra-pancreatic Mucin Leakage: A Case Report

Abstract

Pseudomyxoma peritonei (PMP) is a rare clinical entity characterized by gelatinous tumor implants within the peritoneal cavity and a large amount of mucinous ascites. Although most PMP cases originate in the appendix, few are associated with pancreatic intraductal papillary mucinous neoplasm (IPMN). IPMNs secrete thick mucin; therefore, they usually present with pancreatic duct dilatation. The presence of IPMN with extra-pancreatic mucin could be a marker of the eventual seeding of tumor outside the primary site. PMP associated with mucin leakage from pancreatic IPMN has been rarely reported. Here, we report the case of a patient with PMP that originated from pancreatic IPMN.