2020
DOI: 10.1055/a-1180-9571
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Placental Mesenchymal Dysplasia: Ultrasound Characteristics and Diagnostic Pitfalls

Abstract: Placental mesenchymal dysplasia (PMD) is a rare, benign developmental anomaly with a reported prevalence of 0.02% (Arizawa and Nakayama, 2002). It is characterized by placentomegaly with multiple cystic lesions of the stem villi and vascular anomalies (Pawoo and Heller, 2014). Early detection of PMD has been described during routine prenatal ultrasound (Vaisbuch et al., 2009). The sonographic characteristics … Show more

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Cited by 5 publications
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“…For differential diagnosis, PMD is distinguished from partial and complete mole by ultrasonographic and histopathological examination. In partial molar pregnancy, the ultrasound findings show a thickened placenta, with multicystic, hypoechoic areas, and an abnormal fetus [ 7 , 15 , 28 ]. In contrast, PMD has in addition to the similar appearance of hypoechoic, multicystic areas, areas of the normal placenta, an apparently normal fetus [ 28 ].…”
Section: Discussionmentioning
confidence: 99%
“…For differential diagnosis, PMD is distinguished from partial and complete mole by ultrasonographic and histopathological examination. In partial molar pregnancy, the ultrasound findings show a thickened placenta, with multicystic, hypoechoic areas, and an abnormal fetus [ 7 , 15 , 28 ]. In contrast, PMD has in addition to the similar appearance of hypoechoic, multicystic areas, areas of the normal placenta, an apparently normal fetus [ 28 ].…”
Section: Discussionmentioning
confidence: 99%
“…La DMP está caracterizada por presencia de feto de apariencia normal junto a placenta engrosada con múltiples lesiones lacunares o quísticas anecoicas, con flujo vascular bajo o ausente en la evaluación Doppler y vellosidades edematosas ampliamente distribuidas (4) . Su incidencia aproximada es de 0,02% de los embarazos y una relación de sexo femenino / masculino de 3,6:1 (1) . Algunos sinónimos utilizados para esta condición son placentomegalia con hidropesía masiva de vellosidades del tallo placentario, hiperplasia mesenquimatoso vellosa del tallo y pseudo-mola lacunar (5)(6)(7) .…”
Section: Discussionunclassified
“…Por otra parte, 90% de los casos presentan placenta con vasos coriónicos dilatados en el tercer trimestre que apenas pueden ser observados antes de las 25 semanas de gestación (3) . En estos casos es necesario realizar la evaluación detallada para descartar anomalías fetales asociadas, principalmente hallazgos consistentes con el síndrome de Beckwith-Wiedemann, que ha sido descrito en 20% de los casos de DMP (1) . La evaluación Doppler durante el primer trimestre no muestra flujo sanguíneo en los espacios quísticos placentarios.…”
Section: Discussionunclassified
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