Placental osseous metaplasia associated with abortion in a mare: case report

ABSTRACT The aim of this report is to describe a case of marked osseous metaplasia in the placenta associated with abortion in a mare. A 19-year-old Campolina mare with a history of multiple parturitions and absence of reproductive failure, aborted a fetus with approximately six months of gestation....

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Main Authors: P.A. Lima, C. Eckstein, R. Ecco, R.L. Santos
Format: Article
Language:English
Published: Universidade Federal de Minas Gerais
Series:Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000100053&lng=en&tlng=en
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author P.A. Lima
C. Eckstein
R. Ecco
R.L. Santos
author_facet P.A. Lima
C. Eckstein
R. Ecco
R.L. Santos
author_sort P.A. Lima
collection DOAJ
description ABSTRACT The aim of this report is to describe a case of marked osseous metaplasia in the placenta associated with abortion in a mare. A 19-year-old Campolina mare with a history of multiple parturitions and absence of reproductive failure, aborted a fetus with approximately six months of gestation. There were no gross changes in the fetus and the placenta. Microscopically, there was multifocal replacement of fetal connective mesenchyme of the chorionic villi with well differentiated and partially mineralized osseous tissue (confirmed by von Kossa staining). To further characterize the collagenous component of the lesion, sections of the placenta were stained with Masson’s trichrome and Picrosirius red. Osseous tissue deposition had abundance of type I collagen. To the best of our knowledge, this is the first report of osseous metaplasia in the placenta of a mare associated with abortion at mid gestation, presumably due to placentary insufficiency.
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spelling doaj.art-a4e94ef1bf4c4ce888ba084070bc6b7e2022-12-21T19:19:05ZengUniversidade Federal de Minas GeraisArquivo Brasileiro de Medicina Veterinária e Zootecnia1678-4162701535610.1590/1678-4162-9828S0102-09352018000100053Placental osseous metaplasia associated with abortion in a mare: case reportP.A. LimaC. EcksteinR. EccoR.L. SantosABSTRACT The aim of this report is to describe a case of marked osseous metaplasia in the placenta associated with abortion in a mare. A 19-year-old Campolina mare with a history of multiple parturitions and absence of reproductive failure, aborted a fetus with approximately six months of gestation. There were no gross changes in the fetus and the placenta. Microscopically, there was multifocal replacement of fetal connective mesenchyme of the chorionic villi with well differentiated and partially mineralized osseous tissue (confirmed by von Kossa staining). To further characterize the collagenous component of the lesion, sections of the placenta were stained with Masson’s trichrome and Picrosirius red. Osseous tissue deposition had abundance of type I collagen. To the best of our knowledge, this is the first report of osseous metaplasia in the placenta of a mare associated with abortion at mid gestation, presumably due to placentary insufficiency.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000100053&lng=en&tlng=enequineossificationosseous matrixcollagenchorionic villi
spellingShingle P.A. Lima
C. Eckstein
R. Ecco
R.L. Santos
Placental osseous metaplasia associated with abortion in a mare: case report
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
equine
ossification
osseous matrix
collagen
chorionic villi
title Placental osseous metaplasia associated with abortion in a mare: case report
title_full Placental osseous metaplasia associated with abortion in a mare: case report
title_fullStr Placental osseous metaplasia associated with abortion in a mare: case report
title_full_unstemmed Placental osseous metaplasia associated with abortion in a mare: case report
title_short Placental osseous metaplasia associated with abortion in a mare: case report
title_sort placental osseous metaplasia associated with abortion in a mare case report
topic equine
ossification
osseous matrix
collagen
chorionic villi
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000100053&lng=en&tlng=en
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AT ceckstein placentalosseousmetaplasiaassociatedwithabortioninamarecasereport
AT recco placentalosseousmetaplasiaassociatedwithabortioninamarecasereport
AT rlsantos placentalosseousmetaplasiaassociatedwithabortioninamarecasereport