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Cortical malformations: a significant cause of paediatric neurological morbidity
1Department of Neurology, Royal Children's Hospital, Melbourne, Victoria, Australia.
Insights
Disorders of cortical development cause epilepsy and neurological deficits in children. Advances in neuroimaging and genetics are improving our understanding of these complex congenital brain malformations.
Area of Science:
- Neuroscience
- Developmental Biology
- Pediatric Neurology
Background:
- Disorders of cortical development are a major cause of pediatric epilepsy, developmental delay, and congenital neurological deficits.
- These conditions arise from disruptions in neuronal proliferation, differentiation, migration, and organization during fetal development, primarily in the second trimester.
- Recent progress in neuroimaging and genetic research has significantly enhanced the identification and classification of these malformations.
Purpose of the Study:
- To review the current understanding of disorders of cortical development.
- To highlight the role of neuroimaging and genetic studies in diagnosing these conditions.
- To emphasize the ongoing advancements in the field.
Main Methods:
- Review of current literature on cortical development disorders.
- Analysis of advances in magnetic resonance imaging (MRI) techniques for lesion characterization.
- Integration of clinical and genetic findings to define clinicopathological syndromes.
Main Results:
- A variety of cortical malformations are now identifiable through characteristic radiological appearances.
- Specific clinicopathological syndromes with defined inheritance patterns have been recognized.
- Understanding is rapidly evolving due to multidisciplinary research efforts.
Conclusions:
- Disorders of cortical development are increasingly recognized and understood.
- Continued advancements in neuroimaging, developmental neurobiology, and clinical awareness are crucial for further progress.
- Improved diagnosis and understanding will lead to better management of affected children.
Abstract:
Disorders of cortical development are a significant cause of epilepsy, developmental delay and congenital neurological deficits in children of all ages. Disruption of neuronal proliferation, differentiation, migration and organization during the middle trimester are recognized as the basis of most of these disorders. With advances in magnetic resonance imaging and increasing recognition of the characteristic radiological appearance of these lesions, a variety of lesions are now described. Furthermore, detailed clinical and genetic studies have lead to the recognition of clinicopathological syndromes of cortical maldevelopment with specific modes of inheritance. Our understanding of these disorders is increasing rapidly and will continue to do so with improvements in neuroimaging, advances in developmental neurobiology and heightened clinician awareness.