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Morphology of intraductal papillary neoplasm of the bile ducts: radiologic-pathologic correlation

Authors
Kim, HeejungLim, Jae HoonJang, Kee TaekKim, Min JuLee, JongmeeLee, Ji YoungChoi, DongilLim, Hyo KeunChoi, Dong WookLee, Jong KyunBaron, Richard
Issue Date
8월-2011
Publisher
SPRINGER
Keywords
Cholangiocarcinoma; Intraductal papillary neoplasm of the bile duct; Papillary carcinoma of the bile duct; Biliary papillomatosis; Biliary intraepithelial neoplasia; Precancerous lesions of cholangiocarcinoma
Citation
ABDOMINAL IMAGING, v.36, no.4, pp.438 - 446
Indexed
SCIE
SCOPUS
Journal Title
ABDOMINAL IMAGING
Volume
36
Number
4
Start Page
438
End Page
446
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/111854
DOI
10.1007/s00261-010-9636-2
ISSN
0942-8925
Abstract
Purpose : Intraductal papillary neoplasm of the bile duct (IPN-B) is known as a premalignant lesion of invasive cholangiocarcinoma. The purpose of this study was for radiologic-pathologic correlation of morphologic features of IPN-B and to correlate the subclassifications with biological behavior in regard to the bile duct wall invasion. Materials and Methods : A pathologist classified gross morphology of 75 cases (44 men and 31 women, age range, 39-85) of histopathologically proven IPN-B into polypoid, cast-like, superficial-spreading, and cyst-forming type. Preoperative images were retrospectively reviewed by two observers independently and classified the gross appearance of intraductal tumors into the four types. Results : The pathologist classified macroscopic appearances of 75 cases of IPN-B into polypoid type in 26, cast-like intraductal growth in 17, superficial-spreading growth in 21, and cyst-forming type in 11. Two observers classified image findings in accordance with pathologist's classification in 58 and 57 (77% and 76%) among the 75 cases of IPN-B, respectively; 18 and 19 of 26 cases of polypoid type, 14 and 14 of 17 cases of cast-like growth type, 16 and 19 of 21 cases of superficial-spreading type, 10 and 5 of 11 cases of cyst-forming type, respectively. Interobserver agreement for subclassification of tumor morphology was in the category of good agreement (k = 0.651). There was no correlation between morphological subclassification and tendency to invasive cholangiocarcinoma. Conclusion : IPN-Bs can be classified morphologically into polypoid, cast-like growth, superficial-spreading, and cystic type, but there is no correlation between the types and tendency to invasive cholangiocarcinoma.
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