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Radiol Case Rep. 2019 Feb 13;14(4):495-500. doi: 10.1016/j.radcr.2019.01.023. eCollection 2019 Apr.

Intraductal papillary mucinous neoplasm of the biliary tract: A precursor lesion to cholangiocarcinoma.

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University of California, San Diego Health Systems, 200 W Arbor Dr, 8756, San Diego, CA 92103, USA.
Loma Linda University Medical Center, 11234 Anderson St, Loma Linda, CA 92354, USA.


Intraductal papillary mucinous neoplasm of the biliary tract (IPMN-B) is an increasingly recognized pathologic entity characterized by intraluminal papillary masses and increased mucin secretion, resulting in obstruction and dilation of the biliary tree. These lesions, rarely seen in clinical practice in the United States, are now considered to be important precursors for the development of cholangiocarcinoma. Therefore, it is critical that radiologists become familiar with the radiographic manifestations of IPMN-B in order to diagnosis these lesions at a time when surgical resection may be curative. Here we report a pathologically confirmed case of IPMN-B in a patient with chronic ulcerative colitis and subsequently discuss the main radiographic manifestations of this rare condition across multiple imaging modalities.


Cholangiocarcinoma; Intraductal papillary mucinous neoplasm of the biliary tract; MRI; Ulcerative colitis; Ultrasound

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