title: Benign hepatocellular tumor of the placenta.
abstract: Neoplasms of the placenta, other than trophoblastic tumors and chorangiomas, are exceedingly rare and predominantly include teratomas and metastatic maternal tumors. There has been a single case report of a hepatocellular adenoma-like neoplasm of the placenta that was characterized as most likely representing a specialized monodermal teratoma. We report a second apparent case of a hepatocellular adenoma-like lesion occurring in a preterm placenta with compelling morphologic, immunohistochemical, and ultrastructural validation of tissue hepatic in origin. It remains inconclusive that this lesion represents a neoplasm rather than a rare ectopic or heterotopic occurrence.
authors.affiliation: Akron City Hospital, Summa Health Systems, Ohio 44309, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Vesoulis
authors.forename: D
authors.initials: D
authors.lastname: Agamanolis
mesh_terms: D018248:Adenoma, Liver Cell / Q000473:pathology*; D000293:Adolescent; D005260:Female; D006801:Humans; D010920:Placenta / Q000473:pathology*; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic; D011253:Pregnancy in Adolescence; D013724:Teratoma / Q000473:pathology*