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Liver and intrahepatic bile ducts-nontumor

Developmental anomalies/cysts

Multiple hilar cysts


Reviewers: Komal Arora, M.D. (see Reviewers page)
Revised: 23 April 2012, last major update April 2012
Copyright: (c) 2004-2012, PathologyOutlines.com, Inc.

General
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● Arise from peribiliary glands surrounding extrahepatic and large intrahepatic bile ducts in hilum (J Gastroenterol Hepatol 1997;12:137)
● Cysts are incidental finding in 20% of autopsies
● May compress adjacent bile duct; also associated with cirrhosis and portal vein thrombosis

Gross description
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● Up to 2 cm, unilocular with clear serous fluid, if multiple may make liver appear spongy

Micro description
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● Lined by columnar to cuboidal epithelium with mild chronic inflammatory infiltrate, fibrosis, fibrous obliteration of small veins; occasional hyperplasia

End of Liver and intrahepatic bile ducts-nontumor > Developmental anomalies/cysts > Multiple hilar cysts


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