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Pallister-Killian syndrome.

Kosuke Izumi, Ian D Krantz

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    This summary is machine-generated.

    Pallister-Killian syndrome (PKS) is a rare genetic disorder caused by extra copies of chromosome 12p. This review covers recent clinical and molecular advances in understanding PKS.

    Keywords:
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    Area of Science:

    • Genetics
    • Developmental Biology
    • Clinical Medicine

    Background:

    • Pallister-Killian syndrome (PKS) is a rare genetic disorder characterized by a distinct set of congenital anomalies.
    • It arises from extra copies of chromosome 12p, typically a marker isochromosome 12p, often presenting with tissue-limited mosaicism.

    Observation:

    • PKS presents with craniofacial dysmorphism, pigmentary skin anomalies, congenital heart defects, diaphragmatic hernia, hypotonia, intellectual disability, and epilepsy.
    • Diagnosis can be challenging due to the mosaic nature of the isochromosome, frequently absent in lymphocytes.

    Findings:

    • The underlying mechanisms linking isochromosome 12p to the diverse PKS phenotype are not fully elucidated.
    • Recent research is advancing the clinical and molecular understanding of this complex syndrome.

    Implications:

    • Improved diagnostic strategies are needed to overcome challenges associated with tissue-limited mosaicism.
    • Further research into the molecular basis of PKS may reveal novel therapeutic targets and improve patient outcomes.