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[Morphometric study of the piririform aperture].

E Vitte, H Guerin-Surville, M Baulac

    Bulletin De L'Association Des Anatomistes
    |September 1, 1983
    PubMed
    Summary

    A small piriform aperture (nasal opening) can impede airflow, leading to the "syndrome of aspiration of the nasal ala." Its size and shape are linked to ethnic origin, not skull type, aiding in diagnosing nasal airflow issues.

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    Area of Science:

    • Anatomy
    • Anthropology
    • Rhinology

    Context:

    • The piriform aperture, the nasal entrance, can be abnormally small, obstructing inspiratory airflow.
    • This obstruction may cause the functional disturbance known as the 'syndrome of aspiration of the nasal ala.'

    Purpose:

    • To investigate the dimensions and form of the piriform aperture.
    • To determine correlations between piriform aperture morphology and skull morphology.
    • To assess the influence of ethnic origin and cranial anthropologic type on piriform aperture characteristics.

    Summary:

    • This study analyzed 100 skulls, measuring piriform aperture dimensions and calculating a 'form index.'
    • Findings indicate that piriform aperture form and dimensions are primarily influenced by ethnic origin, independent of cranial anthropologic type.
    • The study highlights that piriform aperture surface area can be estimated radiologically and should be correlated with nasal pyramid morphology.

    Impact:

    • Establishes that piriform aperture morphology is ethnically dependent.
    • Demonstrates the utility of radiological examination for assessing piriform aperture surface area.
    • Emphasizes the importance of piriform aperture dimensions for diagnosing functional rhinologic disturbances.

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