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However, the patient was deemed a poor surgical candidate for pancreaticoduodenectomy, and unfortunately represented 5\u2005months later with findings suggesting cholangiocarcinoma. This case provides a unique opportunity to study the natural progression of biliary adenoma to cholangiocarcinoma.<\/jats:p>","DOI":"10.1136\/bcr-2014-204014","type":"journal-article","created":{"date-parts":[[2014,5,23]],"date-time":"2014-05-23T06:32:29Z","timestamp":1400826749000},"page":"bcr2014204014","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["A rare cause of dilated bile duct incidentally detected on imaging"],"prefix":"10.1136","volume":"2014","author":[{"given":"Kah Poh","family":"Loh","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Baystate Medical Center\/Tufts University, Springfield, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Deborah","family":"Nautsch","sequence":"additional","affiliation":[{"name":"Department of Pathology, Baystate Medical Center\/Tufts University, Springfield, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Desilets","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, Baystate Medical Center\/Tufts University, Springfield, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vaibhav","family":"Mehendiratta","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, Baystate Medical Center\/Tufts University, Springfield, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2014,5,23]]},"reference":[{"key":"2025082702321316000_2014.may23_1.bcr2014204014.1","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","year":"2004","journal-title":"Am Surg"},{"key":"2025082702321316000_2014.may23_1.bcr2014204014.2","doi-asserted-by":"publisher","DOI":"10.3748\/wjg.14.4705"},{"key":"2025082702321316000_2014.may23_1.bcr2014204014.3","doi-asserted-by":"publisher","DOI":"10.1111\/j.1478-3231.2011.02560.x"},{"key":"2025082702321316000_2014.may23_1.bcr2014204014.4","first-page":"1733","article-title":"[Intrahepatic biliary cystadenoma: experience with 10 consecutive cases at a single center]","volume":"31","author":"Meng","year":"2011","journal-title":"Nan Fang Yi Ke Da Xue Xue Bao"},{"key":"2025082702321316000_2014.may23_1.bcr2014204014.5","unstructured":"Hamilton SR Aaltonen LA . 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