Mesenchymal hamartoma of the liver in a late-term equine fetus

D. L. Brown, M. Anderson, John M. Cullen

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Mesenchymal hamartoma of the liver is a rare congenital disorder of biliary tract development. During the necropsy of a late-term equine fetus, a markedly enlarged liver of more than two times normal weight was found. Light microscopic review revealed that the normal hepatic parenchyma had been obliterated, replaced, and expanded by abnormal bile ducts surrounded by abundant, myxoid stroma. The lesion was diagnosed as a mesenchymal hamartoma. Small portions of the liver had bridging septa of fibrosis and proliferations of small-caliber abnormal bile ducts, resembling another congenital biliary abnormality termed congenital hepatic fibrosis.

Original languageEnglish (US)
Pages (from-to)100-102
Number of pages3
JournalVeterinary Pathology
Issue number1
StatePublished - Jan 2007


  • Biliary tract
  • Congenital
  • Equidae
  • Hamartoma
  • Liver

ASJC Scopus subject areas

  • veterinary(all)


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