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Multicenter analysis of clinicopathologic features of intraductal papillary mucinous tumor of the pancreas: is it possible to predict the malignancy before surgery?

Authors
Jang, JY; Kim, SW; Ahn, YJ; Yoon, YS; Choi, MG; Lee, KU; Han, JK; Kim, WH; Lee, YJ; Kim, SC; Han, DJ; Kim, YI; Choi, SH; Cho, BH; Yu, HC; Yoon, DS; Lee, WJ; Lee, KB; Kim, YC; Lee, KS; Kim, MW; Kim, HJ; Park, YH
Citation
Annals of surgical oncology, 12(2):124-132, 2005
Journal Title
Annals of surgical oncology
ISSN
1068-92651534-4681
Abstract
BACKGROUND: Despite recently increasing numbers of reports on intraductal papillary mucinous tumors (IPMTs), difficulties still remain in terms of diagnosis, treatment, and prognosis. The purpose of this multicenter study was to evaluate the clinicopathologic features of IPMT in Korea and to suggest predictive criteria for malignancy in IPMT.



METHODS: We retrospectively reviewed the clinicopathologic data of 208 patients who underwent operations for IPMT between 1993 and 2002 at 28 institutes in Korea.



RESULTS: Of the 208 patients (mean age, 61 years), 147 were men and 61 were women. A total of 124 patients underwent pancreatoduodenectomy, 42 underwent distal pancreatectomy, 17 underwent total pancreatectomy, and 25 underwent limited pancreatic resection. There were 128 benign cases (adenoma, n = 62; borderline, n = 66) and 80 malignant cases (noninvasive, n = 29; invasive, n = 51). A significant difference in 5-year survival was observed between the benign and malignant groups (92.6% vs. 65.3%; P = .006). Of the six factors (age, location, duct dilatation, mural nodule, main duct type, and tumor size) that showed statistical differences by univariate analysis between the benign and malignant groups, three were significant by multivariate analysis--namely, mural nodule (P = .009), tumor size (P = .023), and a dilated duct size (P = .010).



CONCLUSIONS: A significant proportion of IPMTs are malignant, although the overall prognosis of IPMT is superior to that of ordinary pancreatic cancer. Radical surgery is recommended for IPMT with the predictors of malignancy: mural nodule, tumor size (> or =30 mm), and dilated duct size (> or =12 mm).
MeSH terms
Adenocarcinoma, Mucinous/pathology*AdultAgedAged, 80 and overCarcinoma, Pancreatic Ductal/pathology*Carcinoma, Papillary/pathology*FemaleHumansMaleMiddle AgedNeoplasm StagingPancreatectomyPancreatic Neoplasms/pathology*PancreaticoduodenectomyPreoperative CarePrognosisRetrospective StudiesSurvival Analysis
DOI
10.1245/ASO.2005.02.030
PMID
15827792
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Surgery
AJOU Authors
김, 명욱
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