Placental mesenchymal dysplasia associated with hepatic mesenchymal hamartoma in the newborn.

Pediatr Dev Pathol

Department of Neonatology, Fetal Medicine Unit, The Canberra Hospital, Woden, and Australian National University Medical School, Canberra, ACT, Australia.

Published: May 2007

AI Article Synopsis

  • Placental mesenchymal dysplasia is a rare condition characterized by an enlarged placenta with abnormal structures that can resemble a partial hydatidiform mole but can occur alongside a healthy fetus.
  • In a case study, this disorder led to preterm labor at 33 weeks, fetal distress, and complications including a large hepatic cyst that required surgical intervention.
  • Despite intensive medical care, the newborn suffered from severe health issues and ultimately died, with findings confirming a link between placental mesenchymal dysplasia and a liver tumor known as a mesenchymal hamartoma.

Article Abstract

Placental mesenchymal dysplasia is an uncommon disorder in which the placenta is enlarged with abnormal, large, and often cystic villi with dilated and/or thick-walled vessels. These placental changes can mimic a partial hydatidiform mole but in contrast to a partial mole can coexist with a fully viable fetus. Fetal anatomical and vascular anomalies frequently coexist with placental mesenchymal dysplasia. In this case, placental mesenchymal dysplasia was associated with preterm labor at 33 weeks' gestation, fetal compromise, and a large abdominal mass with a large hepatic cyst that was de-roofed at exploratory laparotomy. The neonate remained critically ill with hypoxic ischaemic encephalopathy and coagulopathy and died despite intensive care. Biopsy and autopsy findings showed a large cystic mesenchymal hamartoma affecting the left lobe of the liver. This appears to be the 3rd histologically confirmed association of placental mesenchymal dysplasia with mesenchymal hamartoma of the liver in the English language literature.

Download full-text PDF

Source
http://dx.doi.org/10.2350/06-03-0066.1DOI Listing

Publication Analysis

Top Keywords

placental mesenchymal
20
mesenchymal dysplasia
20
mesenchymal hamartoma
12
dysplasia associated
8
large cystic
8
mesenchymal
7
placental
6
dysplasia
5
associated hepatic
4
hepatic mesenchymal
4

Similar Publications

South American camelids inhabit high-altitude environments characterized by hypoxia, influencing embryonic, fetal, and placental development. This study examined the term placenta morphology of alpacas (, N = 12) and the immunoexpression of antioxidant selenoproteins (SP). We hypothesize that the placenta of alpacas, adapted to high altitudes, has characteristics with other species also adapted to altitude.

View Article and Find Full Text PDF

Polycystic ovary syndrome (PCOS) is a common cause of infertility in women, characterized by metabolic and hormonal irregularities. We investigated the effects of placenta-derived mesenchymal stem cells (PDMSCs) and platelet-rich plasma (PRP), as well as their combination on follicular development, hormonal profile, inflammatory parameters, and insulin resistance in a model of PCOS. In this study, 25 female Wistar rats were randomly allocated into five groups: Sham (given a dose of 1 mL of a 0.

View Article and Find Full Text PDF

Placental mesenchymal dysplasia (PMD) is a rare placental pathology that sonographically mimics gestational trophoblastic diseases. However, mesenchymal dysplasia can be distinguished from other conditions by the presence of villous edema and the absence of trophoblastic proliferation in the placental tissue. This pathology has been demonstrated to be associated with fetal growth restriction, Beckwith-Wiedemann syndrome, some chromosomal abnormalities and intrauterine fetal demise.

View Article and Find Full Text PDF

Transcription coactivator YAP1 promotes CCND1/CDK6 expression, stimulating cell proliferation in cloned cattle placentas.

Zool Res

January 2025

State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), Inner Mongolia University, Hohhot, Inner Mongolia 010070, China.

Somatic cell nuclear transfer (SCNT) has been successfully employed across various mammalian species, yet cloned animals consistently exhibit low pregnancy rates, primarily due to placental abnormalities such as hyperplasia and hypertrophy. This study investigated the involvement of the Hippo signaling pathway in aberrant placental development in SCNT-induced bovine pregnancies. SCNT-derived cattle exhibited placental hypertrophy, including enlarged abdominal circumference and altered placental cotyledon morphology.

View Article and Find Full Text PDF

Background/aims: Epithelial-to-mesenchymal transition (EMT) plays a crucial role in hepatic fibrogenesis and liver repair in chronic liver disease. Our research highlights the antifibrotic potential of placenta-derived mesenchymal stem cells (PD-MSCs) and the role of phosphatase of regenerating liver-1 (PRL-1) in promoting liver regeneration.

Methods: We evaluated the efficacy of PD-MSCs overexpressing PRL-1 (PD-MSCsPRL-1) in a bile duct ligation (BDL)-induced rat injury model, focusing on their ability to regulate EMT.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!