Chromosomal mosaicism is one of the primary interpretative issues in prenatal diagnosis. In this review, the mechanisms underlying feto-placental chromosomal mosaicism are presented. Based on the substantial retrospective diagnostic experience with chorionic villi samples (CVS) of a prenatal diagnosis laboratory the following items are discussed: (i) The frequency of the different types of mosa...

Introduction: Prematurity remains the main cause of mortality and morbidity in infants and a problem in the care of pregnant women world-wide. This study describes the risk factors for having a live preterm delivery in Bandar Abbas Shariati Hospital. Methods: In this case-control study, we studied 300 neonates who were borned in Shariati hospital in 2011 and divided them into two groups: case g...

Background. Pregnancy with concomitant chorioangioma and placental mesenchymal dysplasia (PMD) coexisting with a normal viable fetus is very rare. The literature was reviewed to explore the incidence and genetic origin of this condition. Case. The case was first identified by prenatal ultrasonography, but the prenatal diagnosis only included chorioangioma. PMD was then confirmed during postnata...

GOAL In clinical practice, variability of placental surface shape is common. We measure the average placental shape in a birth cohort and the effect deviations from the average have on placental functional efficiency. We test whether altered placental shape improves the specificity of histopathology diagnoses of maternal uteroplacental and fetoplacental vascular pathology for clinical outcomes....

Placental mesenchymal dysplasia is an increasingly recognizable abnormality. Early cases have been confused with partial hydatidiform mole. Placental mesenchymal dysplasia is probably under-diagnosed because of being an unfamiliar clinical entity and also mistaken for gestational trophoblastic disease due to the similar sonographic findings of two entities. In this report, we describe the clini...

Background & Objective: It was declared that COVID-19 might be more severe in symptomatic pregnant patients. This study conducted to examine the pathological indices of placenta women who were diagnosed with COVID-19.Methods: A total 20 COVID-19–positive mothers enrolled this study. Detailed placental pathology findings compared between subjects based on history abortion or occurrence preterm d...

Placental abnormality may affect the fetus adversely. The purpose of this study was to identify prevalence placental histopathological examination in a private hospital setting and analyse histopathology findings for high-risk pregnancies. A retrospective cross-sectional conducted at Mater Hospital Sydney from January 2018 June 2020. classified as per 2014 Amsterdam Workshop Group criteria, ena...

Abstract Background The spectrum of placental adhesive disorders (PAD) forms an important cause for emergency cesarean hysterectomy, requiring accurate prenatal diagnosis optimal obstetric management. Purpose aim this study was to assess the utility magnetic resonance imaging (MRI) and identify individual MRI features that are most useful in evaluation PAD. Materials Methods This a retrospectiv...

Background and aim: Horseshoe placenta is a variant of ring-shaped placenta. Ring-shaped placenta is a rare anomaly seen in fewer than 1 in 6000 deliveries, which could be seen as horseshoe shape due to atrophy in a portion of the ring. This report refers to a possible relationship between the horseshoe shape placenta and preterm labor; although it has not been yet validated in the literature. ...