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Related Experiment Videos

Pathogenesis of canine aural hematomas.

R R Dubielzig, J W Wilson, A A Seireg

    Journal of the American Veterinary Medical Association
    |October 15, 1984
    PubMed
    Summary

    Aural hematomas in dogs can cause fractures within the pinnal cartilage. This study suggests head shaking, through rapid or sustained motion, may lead to cartilage damage and hematoma formation.

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    Area of Science:

    • Veterinary Pathology
    • Canine Anatomy

    Background:

    • Aural hematomas are common in dogs, often associated with inflammation or trauma.
    • The pinna's cartilage structure is susceptible to mechanical forces.

    Observation:

    • Morphologic examination of three ears from two dogs with aural hematomas was performed.
    • Hematomas were observed to have developed within the pinnal cartilage itself.

    Findings:

    • The pinnal cartilage exhibited fractures extending from perichondrium to perichondrium.
    • Clefts were identified within the cartilage, indicating structural damage.
    • Cartilage fracture is hypothesized to result from wave motions generated during head shaking.

    Implications:

    • Understanding the mechanism of cartilage fracture can inform prevention and treatment strategies for aural hematomas.
    • This research highlights the biomechanical forces involved in canine ear injuries.
    • Further investigation into head-shaking dynamics and their impact on pinnal cartilage is warranted.

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