ArticleBrain communications2026
Genetic landscape and phenotypic correlations of lissencephaly: prenatal and postnatal insights.
Article in Brain communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Zygosity-Dependent Phenotypic Spectrum ofHuman mutation · 2026Article
- Genotype-phenotypic correlation in a Chinese patient with isolated lissencephaly sequence caused by 17p13.3p13.2 chromosomal microdeletion: a 6-year follow-up study.Frontiers in genetics · 2026Article
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22 authors.
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Abstract
Lissencephaly (LIS) is a spectrum of cortical malformations including agyria, pachygyria and subcortical band heterotopia, which arises from aberrant neuronal migration and is associated with severe neurodevelopmental impairments. Despite advancements in prenatal imaging, diagnosing LIS remains challenging. Genetic factors play a crucial role in LIS, involving multiple genes and signalling pathways, yet research on prenatal diagnosis and the genetic basis is still limited. This study aimed to assess the diagnostic yield of whole exome sequencing (WES) in LIS and to examine genotype-phenotype correlations, addressing the challenge of 'phenotype lag' in prenatal LIS diagnosis. This study included 20 fetuses with LIS suggested by prenatal imaging and 20 children with LIS diagnosed after birth; all cases were diagnosed by magnetic resonance imaging and underwent genetic testing. In addition, a literature review was conducted and 80 studies were included, of which 1 was used to compare detection efficacy and 79 studies totalling 210 cases were used to assess genotype-phenotype correlation. In the prenatal cohort, 85.0% (17/20) of cases exhibited concurrent anomalies, predominantly ventriculomegaly (50.0%) and microcephaly (25.0%). In the postnatal cohort, the most common phenotypes were epilepsy (80.0%, 16/20) and global developmental delay (65.0%, 13/20), with half of the cases (10/20) showing no abnormalities in the prenatal period. The diagnostic yields were 55.0% (11/20) and 65.0% (13/20), respectively, with
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