Lissencephaly: Update on diagnostics and clinical management

Area of Science:

• Neuroscience
• Genetics
• Pediatric Neurology

Background:

• Lissencephaly encompasses a range of cortical malformations, including agyria, pachygyria, and subcortical band heterotopia.
• Recent advancements in molecular genetics have significantly improved the diagnostic capabilities for lissencephaly.

Purpose of the Study:

• To review the clinical and molecular diagnostic approaches for lissencephaly.
• To correlate histopathological findings with magnetic resonance imaging (MRI) observations.
• To outline current recommendations for clinical follow-up and epilepsy management in affected individuals.

Main Methods:

• Comprehensive literature review focusing on molecular genetics, neuroimaging, and clinical management of lissencephaly.
• Analysis of diagnostic yields from identified lissencephaly-associated genes.
• Synthesis of histopathological data and its correlation with MRI characteristics.

Main Results:

• Over 30 lissencephaly-associated genes have been identified, contributing to a diagnostic yield exceeding 80%.
• Established correlations between specific histopathological changes and characteristic MRI findings in lissencephaly.
• Summarized clinical follow-up guidelines and current data on epilepsy management strategies.

Conclusions:

• Molecular genetic testing is a powerful tool for diagnosing lissencephaly, achieving high diagnostic yields.
• Understanding the interplay between histopathology and MRI is crucial for accurate diagnosis and management.
• Standardized clinical follow-up and tailored epilepsy management are essential for improving outcomes in lissencephaly patients.