{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T10:20:27Z","timestamp":1792146027596,"version":"4.4.0"},"reference-count":8,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2007,6,12]],"date-time":"2007-06-12T00:00:00Z","timestamp":1181606400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[2008,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We report a case of villous adenoma in the extrahepatic bile duct that was successfully diagnosed with contrast\u2010enhanced sonography (CEUS) before surgical resection. On baseline sonography, the mass appeared as a homogeneously isoechoic mass filling the bile duct from the confluence of the right and left hepatic ducts to the distal common bile duct. No intralesional flow signal was found on color Doppler imaging and power Doppler imaging. On CEUS, the mass showed homogeneous enhancement during arterial phase, thus confirming the neoplastic nature of the lesion. The enhancement decreased gradually so that the mass became hypoenhanced during portal and late phases. Surgical resection was performed, and pathologic examination confirmed a villous adenoma of the bile duct epithelium with mild dysplasia. \u00a9 2007 Wiley Periodicals, Inc. J Clin Ultrasound, 2008<\/jats:p>","DOI":"10.1002\/jcu.20361","type":"journal-article","created":{"date-parts":[[2007,6,12]],"date-time":"2007-06-12T21:46:30Z","timestamp":1181684790000},"page":"39-41","source":"Crossref","is-referenced-by-count":16,"title":["Villous adenoma of extrahepatic bile duct: Contrast\u2010enhanced sonography findings"],"prefix":"10.1002","volume":"36","author":[{"given":"Hui\u2010Xiong","family":"Xu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li\u2010Da","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,6,12]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/gut.31.5.558"},{"key":"e_1_2_1_3_2","series-title":"Surgery of the liver and biliary tract","first-page":"941","author":"Beazley RM","year":"1994"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1001\/archsurg.1962.01310030151024"},{"key":"e_1_2_1_5_2","doi-asserted-by":"crossref","first-page":"603","DOI":"10.1177\/014107689308601020","article-title":"Villous adenoma of the common bile duct","volume":"86","author":"Hanafy M","year":"1993","journal-title":"J R Soc Med"},{"key":"e_1_2_1_6_2","doi-asserted-by":"crossref","first-page":"889","DOI":"10.1177\/000313480206801011","article-title":"Villous adenoma of the extrahepatic biliary tract: a rare entity","volume":"68","author":"O'Shea M","year":"2002","journal-title":"Am Surg"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1440-1746.2003.02916.x"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-5107(92)70488-X"},{"key":"e_1_2_1_9_2","doi-asserted-by":"crossref","first-page":"448","DOI":"10.1177\/000313480407000514","article-title":"Common bile duct papillary adenoma causing obstructive jaundice: case report and review of the literature","volume":"70","author":"Fletcher ND","year":"2004","journal-title":"Am Surg"}],"container-title":["Journal of Clinical Ultrasound"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjcu.20361","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.20361","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,15]],"date-time":"2023-11-15T12:20:21Z","timestamp":1700050821000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jcu.20361"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,6,12]]},"references-count":8,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2008,1]]}},"alternative-id":["10.1002\/jcu.20361"],"URL":"https:\/\/doi.org\/10.1002\/jcu.20361","archive":["Portico"],"relation":{},"ISSN":["0091-2751","1097-0096"],"issn-type":[{"value":"0091-2751","type":"print"},{"value":"1097-0096","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,6,12]]}}}