title: Development of pancreatic ductal adenocarcinoma associated with intraductal papillary mucinous neoplasia.
abstract: We retrospectively investigated the incidence of pancreatic ductal adenocarcinoma among patients with intraductal papillary mucinous neoplasms of the pancreas. Based on imaging in 195 such patients, we chose surgery as initial treatment for 54, and periodic evaluation over 6 to 192 months (mean, 52) for 141. In 6 of the 141 patients observed for intraductal papillary mucinous neoplasm (4.2%), pancreatic ductal adenocarcinoma developed. Further, careful monitoring for cancer occurrence in the remnant pancreas proved essential in the surgical resection group; 2 of 26 patients (7.7%) subsequently developed pancreatic ductal adenocarcinoma in the remnant pancreas, at 41 months and 137 months after surgery. Serial observation of patients with intraductal papillary mucinous neoplasms by contrast-enhanced computed tomography or magnetic resonance cholangiopancreatography therefore is critical, whether or not surgical treatment initially was performed.
authors.affiliation: Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine, 3-6-10, Otobashi, Nakagawa-ku, Nagoya 454-8509, Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Inui
authors.forename: Junji
authors.initials: J
authors.lastname: Yoshino
authors.forename: Hironao
authors.initials: H
authors.lastname: Miyoshi
authors.forename: Takashi
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Satoshi
authors.initials: S
authors.lastname: Yamamoto