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Hemipalatal palsy and microtia.

A L Dellon, G J Claybaugh, J E Hoopes

    Annals of Plastic Surgery
    |June 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Unilateral microtia is part of hemifacial microsomia. This study documents hemipalatal palsy in microtia patients, suggesting a link due to cranial nerve innervation and embryonic origin.

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    Area of Science:

    • Craniofacial abnormalities
    • Otolaryngology
    • Genetics

    Background:

    • Unilateral microtia is frequently associated with hemifacial microsomia.
    • Hemifacial microsomia is a congenital disorder affecting facial development.
    • The relationship between microtia and palatal dysfunction requires further elucidation.

    Purpose of the Study:

    • To investigate the incidence of hemipalatal palsy in patients with unilateral microtia.
    • To explore the potential anatomical and embryological basis for this association.
    • To confirm microtia as a component of hemifacial microsomia.

    Main Methods:

    • Retrospective review of 19 patients diagnosed with unilateral microtia.
    • Clinical assessment of palatal function in the affected patients.

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  • Review of anatomical and embryological literature regarding cranial nerve innervation.

    • Main Results:

    • A high incidence of hemipalatal palsy was observed in the reviewed microtia patient cohort.
    • Partial innervation of the levator veli palatini muscle by the VII cranial nerve was noted.
    • The levator veli palatini muscle's origin from the second branchial arch was identified.

    Conclusions:

    • Hemipalatal palsy is a significant feature within the spectrum of hemifacial microsomia.
    • The shared embryological origin and neural innervation provide a basis for co-occurrence.
    • Unilateral microtia should be considered within the broader context of hemifacial microsomia syndrome.