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Non-trophoblastic neoplasms

Hepatocellular adenoma

Reviewers: Mandolin Ziadie, M.D. (see Reviewers page)
Revised: 29 November 2011, last major update November 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.


● Rare, benign tumor
● May be a heterotopia or a monodermal teratoma (Am J Surg Pathol 1998;22:355, Am J Surg Pathol 1986;10:436)

Gross description

● Most cases have been small (< 1 cm), well-circumscribed red nodules in the placental parenchyma

Micro description

● Well-circumscribed mass composed of benign-appearing liver cells without portal tracts or central veins

End of Placenta > Non-trophoblastic neoplasms > Hepatocellular adenoma

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