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Human middle ear corpuscles -- A light and electron microscopic study.

D Lim, D Jackson, J Bennett

    The Laryngoscope
    |October 1, 1975
    PubMed
    Summary
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    Human middle ear corpuscles are common in adults without ear disease, primarily in the mastoid. Electron microscopy suggests they are not typical pacinian corpuscles, prompting further research into their function.

    Area of Science:

    • Otolaryngology
    • Neuroanatomy
    • Histology

    Background:

    • Von Troeltsch described unique corpuscles in the human middle ear.
    • The precise nature and prevalence of these corpuscles remain incompletely understood.

    Purpose of the Study:

    • To investigate the presence and morphology of human middle ear corpuscles.
    • To clarify their histological classification and anatomical distribution.

    Main Methods:

    • Light microscopy was performed on 124 subjects.
    • Electron microscopy was utilized in 27 subjects.
    • Corpuscle presence was correlated with age and history of otitis media.

    Main Results:

    • Corpuscles were found in 98% of 83 adult subjects without middle ear disease history.

    Related Experiment Videos

  • An average of six corpuscles per temporal bone were observed in healthy adults.
  • Two-thirds of corpuscles were located in the mastoid, one-third in the middle ear.
  • Electron microscopy did not confirm these as typical pacinian corpuscles.
  • Corpuscles were absent in young children and adults with suppurative otitis media history.

    • Conclusions:

    • Human middle ear corpuscles are prevalent in healthy adults, predominantly in the mastoid.
    • Their structure, while superficially resembling pacinian corpuscles, differs upon electron microscopic examination.
    • Further investigation is warranted to elucidate the physiological role of these distinct neuro-anatomical structures.