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Related Experiment Videos

Atelencephaly

M Iivanainen, M Haltia, K Lydecken

    Developmental Medicine and Child Neurology
    |October 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    This study reports a rare case of severe microcephaly due to near-total absence of the telencephalon in an infant. The findings highlight the critical role of telencephalic development in overall brain structure and function.

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    Area of Science:

    • Neuroscience
    • Developmental Biology
    • Pediatric Neurology

    Background:

    • Severe microcephaly presents a significant challenge in pediatric neurology.
    • Understanding the underlying causes of extreme brain malformations is crucial for diagnosis and management.

    Observation:

    • A 13-month-old boy presented with severe microcephaly, marmorated skin, hypoplastic genitalia, and spastic tetraparesis.
    • Neurological examination revealed preserved primitive reflexes but severe psychomotor retardation.
    • Electroencephalogram (EEG) showed symmetrical low-voltage theta-delta activity.

    Findings:

    • Autopsy revealed a near-total absence of the telencephalon, replaced by gliomesenchymal scar tissue.
    • The supratentorial brain mass was extremely small, lacking median fissure and ventricular cavity.

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  • Diencephalic structures, cerebellum, and brainstem were relatively well-developed.

    • Implications:

    • This case underscores the devastating impact of telencephalic agenesis on neurodevelopment.
    • It provides insights into the spectrum of congenital brain malformations and their clinical manifestations.
    • Further research into the genetic and environmental factors contributing to such conditions is warranted.