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Related Experiment Videos

Cerebrospinal fluid dynamics in megalencephaly.

M J Bresnan, A V Lorenzo

    Developmental Medicine and Child Neurology. Supplement
    |January 1, 1975
    PubMed
    Summary

    Macrocephaly, a sign often linked to hydrocephalus, was observed in two children. Investigations revealed progressive megalencephaly, not hydrocephalus, as the cause of their enlarged heads and developmental delays.

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    Brain research·1990

    Area of Science:

    • Neurology
    • Pediatrics
    • Developmental Neuroscience

    Background:

    • Macrocephaly is a key indicator in diagnosing hydrocephalus.
    • Distinguishing between hydrocephalus and other causes of enlarged head circumference is crucial for accurate diagnosis and treatment.

    Observation:

    • Two children presented with macrocephaly (head circumference >98th percentile) and delayed mental development.
    • Neurological examinations were otherwise normal.
    • Cerebrospinal fluid studies showed normal formation and absorption rates, with only mild ventricular dilation in one child at age seven.

    Findings:

    • The macrocephaly was attributed to progressive megalencephaly, characterized by an abnormally enlarged brain.
    • This condition differed from typical hydrocephalus, which involves abnormal cerebrospinal fluid accumulation and pressure.

    Implications:

    • This case highlights the importance of differentiating megalencephaly from hydrocephalus in pediatric macrocephaly.
    • Accurate diagnosis is essential for appropriate management and prognosis in children with developmental delays and enlarged head circumference.

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