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Hand dermatoglyphics in trisomy 4p.

P Mastroiacovo, V Currò, A Calabro

    Human Genetics
    |December 15, 1976
    PubMed
    Summary
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    Dermatoglyphic analysis of 16 patients with 4p trisomy syndrome revealed distinct hand patterns. These include more fingertip whorls and specific palm creases, aiding in recognizing this genetic condition.

    Area of Science:

    • Genetics
    • Dermatoglyphics
    • Clinical Dysmorphology

    Background:

    • Trisomy for the short arm of chromosome 4 (4p trisomy) is a rare genetic disorder.
    • Characteristic features of 4p trisomy syndrome are recognized, but dermatoglyphic findings require further elucidation.

    Purpose of the Study:

    • To investigate dermatoglyphic patterns in patients with 4p trisomy syndrome.
    • To identify specific hand and palm print features associated with 4p trisomy.

    Main Methods:

    • Dermatoglyphic analysis was performed on the hands of 16 patients diagnosed with 4p trisomy.
    • Examination focused on fingertip patterns, palm creases, and main line indices.

    Main Results:

    • Patients exhibited a higher frequency of whorl patterns on their fingertips.

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  • The presence of axial triradii at position t' on the palms was noted.
  • An increased main line index was observed in the study group.

    • Conclusions:

    • The identified dermatoglyphic changes, including fingertip whorls and specific palm features, are associated with 4p trisomy syndrome.
    • While not definitively diagnostic, these dermatoglyphic markers should be considered part of the clinical constellation for 4p trisomy.