Nuchal translucency and lymphatic system maldevelopment
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Carlo Bellini
Abstract
We describe the histological examination of 18 aborted fetuses that had increased nuchal translucency (NT) between 11+0 and 13+6 weeks' gestation. The aim of this study was to assess the corresponding NT anatomic features by immunohistochemical (IHC) investigation. A morphological study was performed using lymphatic and blood endothelial specific markers, as well as smooth muscle actin (SMA). We found that all 18 cases were D2-40 positive, CD31 positive, and CD34 negative, suggesting the presence of nuchal lymph vessel ectasia. We found that 12/18 cases were SMA staining positive and 6/18 cases were SMA negative, suggesting that 6/18 cases had nuchal cystic lymphangiectasia, whereas 12/18 had cystic hygromas. The present data seem to confirm the reasonable hypothesis that lymphangiogenesis plays a relevant role in nuchal edema, increased NT, and that increased NT is the result of a lymphatic malformation or a delayed development of the lymphatic system.
©2009 by Walter de Gruyter Berlin New York
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- Index - Subjects
- Index - Subjects
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- Index - Authors
- Acknowledgement
- Acknowledgement
Articles in the same Issue
- Expert panel recommendation
- Delivery mode for the extremely premature fetus: a statement of the prematurity working group of the World Association of Perinatal Medicine
- Review articles
- The infant incubator in the neonatal intensive care unit: unresolved issues and future developments
- Survival and major disability rate in infant born at 22–25 weeks of gestation
- Original articles – Obstetrics
- Gene expression profiling of maternal blood in early onset severe preeclampsia: identification of novel biomarkers
- Risk assessment for preeclampsia in women with gestational diabetes mellitus
- Maternal serum adiponectin multimers in patients with a small-for-gestational-age newborn
- Maternal serum adiponectin multimers in gestational diabetes
- The effect of maternal obesity on the course of labor
- Decreased placental oxygenation capacity in pre-eclampsia: clinical application of a novel index of placental function preformed at the time of delivery
- Utility of two-dimensional echocardiography in pregnancy and post-partum period and impact on management in an inner city hospital
- A new obstetrical polyurethane versus stainless steel forceps: a comparison of forces generated to the base of the fetal skull during simulated deliveries
- Original article – Fetus
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- Orginal articles – Newborn
- Indicators of compliance for developmental follow-up of infants discharged from a regional NICU
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- Reduction of IGF-binding protein-3 as a potential marker of intra-uterine growth restriction
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- Obstetric outcomes of low-risk labors at ‘Japanese tatami’ mat delivery room: a preliminary study
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- Acknowledgement
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