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Liver and intrahepatic bile ducts-nontumor

Developmental anomalies/cysts

Choledochal cyst


Reviewers: Komal Arora, M.D. (see Reviewers page)
Revised: 9 April 2012, last major update April 2012
Copyright: (c) 2004-2012, PathologyOutlines.com, Inc.

General
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● Cystic dilatations of the biliary tree; can involve the extrahepatic biliary radicles, the intrahepatic biliary radicles, or both
● Classified into 5 types (Am J Surg 1977;134:263)
● Classically presents with pain, right upper quadrant mass and jaundice, particularly in children
● Cholangitis symptoms may predominate in adults
● Usually women
● 14% develop adenocarcinoma with increasing age

Gross description
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● Often huge cysts

Diagrams
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Choledochal cyst classification

Clinical images
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Intraoperative view of choledochal cyst

Micro description
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● Thick fibrous wall, often inflamed
● Discontinuous columnar epithelium; variable squamous metaplasia (Can J Surg 2009;52:434)

Micro images
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Lining of choledochal cyst

End of Liver and intrahepatic bile ducts-nontumor > Developmental anomalies/cysts > Choledochal cyst


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