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Chemodectomas arising in temporal bone structures.

W J Dickens, R R Million, N J Cassisi

    The Laryngoscope
    |February 1, 1982
    PubMed
    Summary
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    Radiation therapy effectively treats temporal bone chemodectomas, leading to tumor regression and no recurrence in patients followed for 3-12 years. Some patients experienced cranial nerve function return after treatment.

    Area of Science:

    • Otolaryngology
    • Neurosurgery
    • Radiation Oncology

    Background:

    • Chemodectomas in temporal bone structures are rare tumors.
    • Staging criteria include bone destruction and cranial nerve involvement.
    • Treatment strategies vary, encompassing surgery and radiation therapy.

    Purpose of the Study:

    • To evaluate the efficacy and outcomes of radiation therapy for temporal bone chemodectomas.
    • To assess the impact of radiation on tumor regression, recurrence, and cranial nerve function.
    • To provide guidelines for selecting initial therapy based on disease stage.

    Main Methods:

    • Retrospective analysis of 18 patients with temporal bone chemodectomas treated at the University of Florida.
    • Patients were staged as having local or advanced disease.

    Related Experiment Videos

  • Radiation therapy (cobalt-60) was administered with doses ranging from 3760 to 5640 rad, either as primary treatment, postoperatively, or for recurrence.

    • Main Results:

    • All irradiated patients showed tumor regression, with no recurrence observed during 3-12 years of follow-up.
    • Five of eight patients with pre-existing cranial nerve paralysis regained function in one or more nerves.
    • Complication rates were lower for initial radiation therapy compared to postoperative radiation.

    Conclusions:

    • Radiation therapy is a highly effective treatment for temporal bone chemodectomas, achieving durable tumor control and functional recovery.
    • Careful patient selection and staging are crucial for optimizing therapeutic outcomes.
    • Further guidelines are proposed for the management of these rare tumors.