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Related Experiment Videos

Temporal bone histopathology in trisomy 22.

I Ohtani1, M Kano, Y Sagawa

  • 1Department of Otolaryngology, Fukushima Medical University, Fukushima 960-1247, Japan.

International Journal of Pediatric Otorhinolaryngology
|May 30, 2001
PubMed
Summary

This study presents the second case of temporal bone histopathology in Trisomy 22, revealing Mondini dysplasia. This genetic disorder can cause various hearing and vestibular dysfunctions due to aural anomalies.

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Area of Science:

  • Genetics
  • Otolaryngology
  • Pathology

Background:

  • Trisomy 22 is a chromosomal abnormality associated with numerous physical anomalies.
  • Aural malformations are frequently observed in individuals with Trisomy 22.
  • Limited histopathological data exists for the temporal bone in Trisomy 22.

Observation:

  • This report details the second case of temporal bone histopathology in Trisomy 22.
  • The observed aural anomalies included Mondini dysplasia affecting both the bony and membranous labyrinth.
  • The severity of anomalies in this case was less pronounced compared to previous descriptions.

Findings:

  • Histopathological examination revealed Mondini dysplasia in the temporal bone.
  • The specific site and severity of these malformations correlate with auditory and vestibular deficits.

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  • This case contributes to understanding the spectrum of otological manifestations in Trisomy 22.

    • Implications:

    • Understanding temporal bone pathology in Trisomy 22 is crucial for diagnosing and managing hearing and balance disorders.
    • This case highlights the variability in aural anomaly presentation in Trisomy 22.
    • Further research into the relationship between genetic anomalies and inner ear development is warranted.