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Inicio Clínica e Investigación en Ginecología y Obstetricia Immunofluorescence study of the placenta in a case of pemphigoid gestationis: Pa...
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Vol. 50. Issue 1.
(January - March 2023)
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Vol. 50. Issue 1.
(January - March 2023)
Case report
Immunofluorescence study of the placenta in a case of pemphigoid gestationis: Pathophysiological bases
Estudio de inmunofluorescencia de la placenta a propósito de un caso de penfigoide gestacional: bases fisiopatológicas
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M. Turiel Mirandaa,
Corresponding author
mturiel93@gmail.com

Corresponding author.
, E.M. Pena Burgosb, G. Córcoles Córcolesa, R.M. Regojo Zapatab, M. Beato Merinob, M. De La Callea, J.L. Bartha Raseroa
a Department of Obstetrics and Gynecology, La Paz University Hospital, Madrid, Spain
b Department of Pathology, La Paz University Hospital, Madrid, Spain
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Abstract
Introduction

Pemphigoid gestationis (PG) is one of the main dermatoses of pregnancy that must be recognized and treated promptly, since it is related to worsening of foetal prognosis. Although skin involvement has been investigated, there is a lack of morphological and functional studies of the placenta in this pathology.

Main symptoms and/or clinical findings

Erythematous vesicular rash at 32+1 weeks of gestation.

Main diagnoses

PG.

Therapeutic interventions and results

Immunogammaglobulin in severe cases refractory to oral corticosteroids with complete disappearance of the lesions.

Conclusion

To our knowledge, this is the first case to report a detailed analysis of IgG and C3 deposits in the basement membrane of the placental villi by means of an immunofluorescence study. These findings could be related to a slight malfunction of the placenta that may explain the adverse neonatal effects.

Keywords:
Autoimmunity
Corticosteroids
Immunofluorescence
Immunogammaglobulin
Pemphigoid gestationis
Resumen
Introducción

El herpes gestationis (HG) es una de las principales dermatosis del embarazo que debe ser reconocida y tratada oportunamente ya que se relaciona con un empeoramiento del pronóstico fetal. Aunque se ha investigado la afectación cutánea, hay escasez de estudios morfológicos y funcionales de la placenta en esta patología.

Principales síntomas o hallazgos clínicos

Erupción vesicular eritematosa a las 32+1 semanas de gestación.

Diagnósticos principales

HG.

Intervenciones terapéuticas y resultados

Inmunogammaglobulina en casos graves refractarios a los corticoides por vía oral con desaparición completa de las lesiones.

Conclusión

Hasta donde sabemos, este es el primer caso que reporta un análisis detallado de los depósitos de IgG y C3 en la membrana basal de las vellosidades de la placenta mediante un estudio de inmunofluorescencia. Estos hallazgos podrían relacionarse con el ligero mal funcionamiento de la placenta que puede explicar los efectos neonatales adversos.

Palabras clave:
Autoinmunidad
Corticoides
Inmunofluorescencia
Inmunogammaglobulina
Penfigoide gestacional

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