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Intraductal Papillary Mucinous Tumor of the Bile Ducts¹

¹ From the Departments of Radiology (J.H.L., S.H.K., H.Y.K., H.K.L.) and Pathology (S.Y.S.), Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135\N710, Korea; Department of Radiology, Wonkwang University School of Medicine, Chunbuk, Korea (K.H.Y.); and Department of Radiology, Dong-A University Hospital, Busan, Korea (K.J.N.). Presented as an education exhibit at the 2002 RSNA scientific assembly. Received January 3, 2003; revision requested March 10 and received March 28; accepted May 27. Supported in part by Sungkyunkwan University and Wonkwang University. All authors have no financial relationships to disclose. Address correspondence to J.H.L. (e-mail: jhlim@smc.samsung.co.kr).

Papillary tumors of the bile ducts are intraductal tumors with numerous minute frondlike papillary projections. Some intraductal papillary tumors of the bile ducts produce a large amount of mucin that disturbs bile flow and causes severe biliary dilatation. In the presence of a tumor of this subgroup, the entire biliary tree is dilated; segmental or lobar bile ducts are dilated disproportionately, and aneurysmal dilatation may occur. Mucin is depicted at cholangiography as multiple elongated or cordlike filling defects, and the tumor is depicted on cross-sectional images as a castlike, polypoid, or fungating mass in the dilated biliary tree. Based on these characteristic imaging features—dilatation, mucin, and tumor—correct diagnosis of intraductal papillary mucinous tumor of the bile ducts may be made.

© RSNA, 2004

Index Terms: Bile ducts, CT, 76.1211 • Bile ducts, MR, 76.1214 • Bile ducts, neoplasms, 76.294, 76.3192, 76.321, 76.329 • Bile ducts, stenosis or obstruction, 76.143 • Bile ducts, US, 76.1298 • Pancreatic ducts, 77.312

Related Article

Invited Commentary

Angela D. Levy
RadioGraphics 2004 24: 66-67. [Full Text] [PDF]

This article has been cited by other articles:

				J. H. Lim, K.-T. Jang, and D. Choi Biliary Intraductal Papillary-Mucinous Neoplasm Manifesting Only as Dilatation of the Hepatic Lobar or Segmental Bile Ducts: Imaging Features in Six Patients Am. J. Roentgenol., September 1, 2008; 191(3): 778 - 782. [Abstract] [Full Text] [PDF]

				J. H. Lim, K.-T. Jang, D. Choi, W. J. Lee, and H. K. Lim Early Bile Duct Carcinoma: Comparison of Imaging Features with Pathologic Findings Radiology, February 1, 2006; 238(2): 542 - 548. [Abstract] [Full Text] [PDF]

				A. D. Levy Invited Commentary RadioGraphics, January 1, 2004; 24(1): 66 - 67. [Full Text] [PDF]