Discordant Eosinophilic/T-Cell Chorionic Vasculitis in a Dichorionic Diamniotic Placenta

Eosinophilic/T-cell chorionic vasculitis (ETCV) is an idiopathic lesion composed of eosinophils, CD3+ T lymphocytes, and histiocytes. In twins, ETCV may affect only one chorionic plate, a feature defined as “discordant”. We present a case of ETCV discordance in a diamniotic dichorionic placenta at 3...

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Main Authors: Evelina Silvestri, Francesca Servadei, Ione Tamagnini, Laura Moretti, Maria Paola Bonasoni
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/11/9207
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author Evelina Silvestri
Francesca Servadei
Ione Tamagnini
Laura Moretti
Maria Paola Bonasoni
author_facet Evelina Silvestri
Francesca Servadei
Ione Tamagnini
Laura Moretti
Maria Paola Bonasoni
author_sort Evelina Silvestri
collection DOAJ
description Eosinophilic/T-cell chorionic vasculitis (ETCV) is an idiopathic lesion composed of eosinophils, CD3+ T lymphocytes, and histiocytes. In twins, ETCV may affect only one chorionic plate, a feature defined as “discordant”. We present a case of ETCV discordance in a diamniotic dichorionic placenta at 38 weeks of gestation, in which the female twin was small for gestational age, weighing 2670 g (25th percentile). The corresponding placental territory presented ETCV in two close chorionic vessels with concordance of the fetal inflammatory response. Immunohistochemistry showed an abundance of CD3+/CD4+/CD25+T lymphocytes, CD68 PG M1+ macrophages, and scattered CD8+ T cells with focal TIA-1 positivity. Granzyme B, CD20 B lymphocytes, and CD56 natural killer cells were negative. High-grade villitis of unknown etiology (VUE) was additionally found and displayed comparable ETCV findings, except for an equivalent ratio of CD4+/CD8+ T cells, but TIA-1 was focally expressed. VUE was associated with chronic histiocytic intervillositis (CHI). The combination of ETCV, VUE, and CHI may have been responsible for reduced fetal growth. Concordance was observed in the ETCV and TIA-1 expression, both in ETCV and in VUE, which is a maternal response. These findings may suggest a common antigen or chemokine pathway to which both mother and fetus accordingly responded.
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spelling doaj.art-8a5d9629eb3847bfb77e25ed40d182da2023-11-18T07:55:58ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-05-012411920710.3390/ijms24119207Discordant Eosinophilic/T-Cell Chorionic Vasculitis in a Dichorionic Diamniotic PlacentaEvelina Silvestri0Francesca Servadei1Ione Tamagnini2Laura Moretti3Maria Paola Bonasoni4Unit of Fetal and Neonatal Pathology, Division of Pathology, San Camillo-Forlanini Hospital, 00152 Rome, ItalyAnatomic Pathology, Department of Experimental Medicine, University of Rome “Tor Vergata”, 00133 Rome, ItalyPathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, ItalyPathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, ItalyPathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, ItalyEosinophilic/T-cell chorionic vasculitis (ETCV) is an idiopathic lesion composed of eosinophils, CD3+ T lymphocytes, and histiocytes. In twins, ETCV may affect only one chorionic plate, a feature defined as “discordant”. We present a case of ETCV discordance in a diamniotic dichorionic placenta at 38 weeks of gestation, in which the female twin was small for gestational age, weighing 2670 g (25th percentile). The corresponding placental territory presented ETCV in two close chorionic vessels with concordance of the fetal inflammatory response. Immunohistochemistry showed an abundance of CD3+/CD4+/CD25+T lymphocytes, CD68 PG M1+ macrophages, and scattered CD8+ T cells with focal TIA-1 positivity. Granzyme B, CD20 B lymphocytes, and CD56 natural killer cells were negative. High-grade villitis of unknown etiology (VUE) was additionally found and displayed comparable ETCV findings, except for an equivalent ratio of CD4+/CD8+ T cells, but TIA-1 was focally expressed. VUE was associated with chronic histiocytic intervillositis (CHI). The combination of ETCV, VUE, and CHI may have been responsible for reduced fetal growth. Concordance was observed in the ETCV and TIA-1 expression, both in ETCV and in VUE, which is a maternal response. These findings may suggest a common antigen or chemokine pathway to which both mother and fetus accordingly responded.https://www.mdpi.com/1422-0067/24/11/9207Eosinophilic/T-Cell chorionic vasculitistwin placentadiscordanceTIA-1 concordance
spellingShingle Evelina Silvestri
Francesca Servadei
Ione Tamagnini
Laura Moretti
Maria Paola Bonasoni
Discordant Eosinophilic/T-Cell Chorionic Vasculitis in a Dichorionic Diamniotic Placenta
International Journal of Molecular Sciences
Eosinophilic/T-Cell chorionic vasculitis
twin placenta
discordance
TIA-1 concordance
title Discordant Eosinophilic/T-Cell Chorionic Vasculitis in a Dichorionic Diamniotic Placenta
title_full Discordant Eosinophilic/T-Cell Chorionic Vasculitis in a Dichorionic Diamniotic Placenta
title_fullStr Discordant Eosinophilic/T-Cell Chorionic Vasculitis in a Dichorionic Diamniotic Placenta
title_full_unstemmed Discordant Eosinophilic/T-Cell Chorionic Vasculitis in a Dichorionic Diamniotic Placenta
title_short Discordant Eosinophilic/T-Cell Chorionic Vasculitis in a Dichorionic Diamniotic Placenta
title_sort discordant eosinophilic t cell chorionic vasculitis in a dichorionic diamniotic placenta
topic Eosinophilic/T-Cell chorionic vasculitis
twin placenta
discordance
TIA-1 concordance
url https://www.mdpi.com/1422-0067/24/11/9207
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