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Related Experiment Videos

Chromosome 7 short-arm interstitial deletion (p14)

S J Moedjono, S J Funderburk, R S Sparkes

    Human Genetics
    |October 19, 1978
    PubMed
    Summary
    This summary is machine-generated.

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    This study details a 13-year-old girl with microcephaly and developmental delays, identifying an interstitial deletion on chromosome 7p14. Findings are compared with other 7p- deletion cases, contributing to understanding this rare chromosomal abnormality.

    Area of Science:

    • Genetics
    • Human Genetics
    • Clinical Cytogenetics

    Background:

    • The 7p- deletion syndrome is a rare chromosomal disorder characterized by a range of congenital anomalies and developmental issues.
    • Understanding the specific breakpoints and associated phenotypes is crucial for diagnosis and genetic counseling.

    Observation:

    • A 13-year-old female presented with microcephaly, a short, broad neck, low posterior hairline, congenital heart disease, joint mobility limitations, and mild intellectual disability.
    • Karyotyping revealed an interstitial deletion at band p14 on the short arm of chromosome 7 (7p14).

    Findings:

    • The patient's phenotype, including distinctive facial features and developmental delays, is consistent with previously reported cases of 7p- deletions.
    • Comparison with five other patients with 7p- deletions helps delineate the critical region and spectrum of clinical manifestations associated with this chromosomal abnormality.

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    Implications:

    • This case expands the known phenotypic spectrum of 7p- deletion syndrome.
    • Further characterization of 7p deletions can aid in genotype-phenotype correlation and improved genetic diagnostics for developmental disorders.