Résumé
La displasia mesenquimal placentaria es una entidad poco conocida, de etiología incierta y subdiagnosticada. Frecuentemente, es confundida con enfermedad trofoblástica gestacional debido a que se presenta con hallazgos ultrasonográficos caracterizados por una placenta engrosada, con quistes e imágenes hipoecogénicas y niveles de gonadotrofina coriónica humana normales o levemente aumentados. El feto es frecuentemente viable y puede manifestar retraso del crecimiento intrauterino, prematurez o asociarse al síndrome de Beckwith-Wiedemann. Se presenta el caso de una mujer joven con un parto pretérmino con placentomegalia, sospecha de mola hidatidiforme parcial y un recién nacido pequeño para la edad gestacional.
The placental mesenchymal dysplasia is a not well known entity, with an uncertain etiology and under diagnosed. It is frequently confused with gestational trophoblastic disease because of its ultrasonographic features of a thick placenta, cysts and hypoechogenic images, with normal or slightly increased levels of human chorionic gonadotrophic hormone. The fetus is often viable and can manifest intrauterine growth restriction, prematurity or be associated with Beckwith-Wiedemann syndrome. We present a case report of a young woman with a preterm delivery, placentomegaly, suspicious of a partial hydatidiform mole and a low growth newborn.
Sujets)
Humains , Adulte , Maladies du placenta/diagnostic , Maladies du placenta/anatomopathologie , Mésoderme/anatomopathologie , Môle hydatiforme/diagnostic , Placenta/anatomopathologieRésumé
Placental mesenchymal dysplasia (PMD) is a recently recognized, rare placental vascular anomaly characterized by placentomegaly and grape-like vesicles mimicking partial molar pregnancy. It is associated with significant fetal morbidity and mortality. We describe the histologic features of PMD in two different cases with different disease outcomes, one in a preterm intrauterine death (IUD) and another in a live birth. Placental examination in both the cases revealed large placenta with multiple vesicles and mesenchymal dysplasia.