期刊
HPB
卷 11, 期 8, 页码 684-691出版社
ELSEVIER SCI LTD
DOI: 10.1111/j.1477-2574.2009.00122.x
关键词
intraductal papillary mucinous neoplasm; biliary; papillary; mucinous
Background: Despite increasing numbers of reports, biliary tract intraductal papillary mucinous neoplasm (BT-IPMN) is not yet recognized as a unique neoplasm. The aim of the present study was to define the presence of BT-IPMN in a large series of resected biliary neoplasms. Methods: From May 1994 to December 2006, BT-IPMN cases were identified by reviewing pathology specimens of all resected cholangiocarcinomas and other biliary neoplasms when cystic, papillary or mucinous features were cited in pathology reports. Results: BT-IPMN was identified in 23 out of 253 (9%) specimens using the strict histopathological criteria of IPMN. The most common presenting symptom was abdominal discomfort which was present in 15 patients (65%). Only one of the original operative pathology reports used the term IPMN; 16 (70%) used the terms cystic, mucinous and/or papillary. BT-IPMN was isolated to non-hilar extra-hepatic ducts in 12 (52%), intra-hepatic ducts in 6 (26%) and hilar extra-hepatic ducts in 5 patients (22%). Carcinoma was found in association with BT-IPMN in 19 patients (83%); 5-year survival was 38% after resection. Conclusion: BT-IPMN occurs throughout the intra-and extra-hepatic biliary system and can be identified readily as a unique neoplasm. Broader acceptance of BT-IPMN as a unique neoplasm may lead to a better understanding of the pathogenesis of biliary malignancies.
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