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Malignant glomus tumors

S Manolidis1, J A Shohet, C G Jackson

  • 1Department of Otolaryngology-Head and Neck Surgery, Baylor University, Houston, Texas, USA.

The Laryngoscope
|January 23, 1999
PubMed
Summary
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Malignancy occurs in 5.1% of jugulotympanic glomus tumors, necessitating aggressive surgical management. This approach, while extensive, offers better outcomes than watchful waiting for these rare skull base lesions.

Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Oncology

Background:

  • Jugulotympanic glomus tumors are rare neoplasms of the skull base.
  • Assessing the incidence of malignancy in these tumors is crucial for treatment planning.

Purpose of the Study:

  • To determine the incidence of malignancy in jugulotympanic glomus tumors.
  • To compare the clinical course of malignant versus nonmalignant skull base lesions.

Main Methods:

  • Retrospective review of skull base surgery cases from 1970 to 1995.
  • Analysis of 175 jugulotympanic glomus tumors.

Main Results:

  • Nine cases (5.1%) of malignancy were identified.
  • Malignant tumors required more extensive surgery with higher associated deficits and mortality.

Related Experiment Videos

  • Five-year survival was 72% in this cohort, with potential for long-term survival despite metastases.

    • Conclusions:

    • The incidence of malignancy warrants against a conservative (watchful waiting) approach.
    • Radiation therapy is not recommended as a primary treatment due to risks of recurrence and malignant degeneration.