Results 71 to 80 of about 11,012 (235)

Diagnostic Yield of Post‐Mortem Fetal Micro‐CT for Central Nervous System Abnormalities

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objectives This study demonstrates the central nervous system (CNS) abnormalities detected using fetal post‐mortem micro‐focus computed tomography (Micro‐CT), independent of whether the abnormality contributed to the main diagnosis or cause of death.
Ian C. Simcock   +5 more
wiley   +1 more source

Holoprosencephaly – a case report [PDF]

open access: yes, 1970
Holoprosencephaly is a brain malformation caused by abnormal division of the forebrain into two separate hemispheres. Abnormal structures of the central nervous system often occur with other midline forebrain and face failures.
Przybył, Barbara   +7 more
core  

Cytogenetic and Molecular Findings in Hydrops‐Related Mirror Syndrome

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective Mirror syndrome is a rare, life‐threatening condition in which maternal fluid overload mirrors fetal hydrops. Data on genetic findings in affected pregnancies are limited. We compared genetic diagnoses in hydrops cases with and without mirror syndrome.
Brian A. Burnett   +11 more
wiley   +1 more source

Concepts in Multifactorial Etiology of Developmental Disorders: Gene-Gene and Gene-Environment Interactions in Holoprosencephaly

open access: yesFrontiers in Cell and Developmental Biology, 2021
Many common developmental disorders are thought to arise from a complex set of genetic and environmental risk factors. These factors interact with each other to affect the strength and duration of key developmental signaling pathways, thereby increasing ...
Hsiao-Fan Lo   +2 more
doaj   +1 more source

Beyond the Negative: Insights From Postnatal Medical Genetics Follow‐Up After Nondiagnostic Prenatal Exome Sequencing

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective To evaluate postnatal medical genetic reassessment and reinterpretation of prenatal exome sequencing (pES) in liveborn children with prenatally identified structural anomalies and nondiagnostic prenatal genetic testing. Method We performed a retrospective chart review of 61 liveborn children with fetal structural anomalies who had ...
Sophie Albert   +4 more
wiley   +1 more source

Prenatal exome sequencing of fetuses with central nervous system anomalies based on prenatal ultrasound and magnetic resonance imaging diagnosis: A retrospective cohort study with a systematic review and meta‐analysis

open access: yesActa Obstetricia et Gynecologica Scandinavica, Volume 105, Issue 10, Page 1950-1964, October 2026.
Prenatal exome sequencing significantly improves diagnostic yield over chromosomal microarray analysis for fetal CNS abnormalities, with a diagnostic yield of 16% in our cohort and 27% in the meta‐analysis. Diagnostic yields vary across different phenotypes. Abstract Introduction Fetal central nervous system (CNS) abnormalities have diverse etiologies,
Jia Yao   +5 more
wiley   +1 more source

Increasing Number of Unusual Brain Abnormalities Seen in Rural West Virginia

open access: yesMarshall Journal of Medicine, 2020
The incidence rate of schizencephaly is 1.5 in 100,000 live births and the rate of holoprosencephaly is 1 in 16,000 live births. Both malformations are rare, but our institution has seen a dramatic increase in both malformations in recent years with no ...
Taylor R. Maddox   +5 more
doaj   +1 more source

Modeling the complex etiology of holoprosencephaly in mice

open access: yesAmerican Journal of Medical Genetics. Part C, Seminars in Medical Genetics, 2018
Holoprosencephaly (HPE) is a common developmental defect caused by failure to define the midline of the forebrain and/or midface. HPE is associated with heterozygous mutations in Nodal and Sonic hedgehog (SHH) pathway components, but clinical ...
Mingi Hong, R. S. Krauss
semanticscholar   +1 more source

Identification of major congenital malformations based on healthcare databases in France: A proof‐of‐concept study using the epi‐meres nationwide mother–child register

open access: yesBritish Journal of Clinical Pharmacology, Volume 92, Issue 9, Page 3037-3048, September 2026.
Abstract Aim Besides registries, healthcare databases can provide useful information for assessing the frequency of major congenital malformations (MCMs) and investigating their risk factors, particularly medication exposures. This study aimed to assess the validity of MCMs identification based on French national, comprehensive healthcare databases ...
Tom Duchemin   +7 more
wiley   +1 more source

A Rare Case of Early-diagnosed Trisomy 13 Syndrome with Typical Semilobar Holoprosencephaly, Cyclopia, and Proboscis: A Case Report

open access: yesJournal of Medical Sciences
Trisomy 13 syndrome is a lethal chromosomal disorder characterized by severe congenital anomalies. We report a case of trisomy 13 syndrome with semilobar holoprosencephaly, cyclopia, proboscis, omphalocele, and an absent nasal bone, prenatally diagnosed ...
Tzu-Rong Liu, Yi-An Kuo, Chi-Kang Lin
doaj   +1 more source

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