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Radiation injury to the temporal bone.

R A Guida1, D G Finn, I H Buchalter

  • 1Department of Otolaryngology-Head and Neck Surgery, New York Eye and Ear Infirmary/New York Medical College 10003.

The American Journal of Otology
|January 1, 1990
PubMed
Summary

Osteoradionecrosis of the temporal bone is a rare, late complication of head and neck radiation therapy. This insidious condition can lead to hearing loss, pain, and severe intracranial issues.

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Area of Science:

  • Otolaryngology
  • Radiation Oncology
  • Oncology

Background:

  • Osteoradionecrosis (ORN) of the temporal bone is an uncommon sequela following radiation therapy for head and neck cancers.
  • Symptoms often manifest years after treatment, progressing insidiously.

Observation:

  • The study presents five cases of temporal bone ORN, illustrating varied disease severities.
  • Manifestations include hearing loss, otalgia, otorrhea, and tissue extrusion.
  • Advanced stages can involve intracranial complications like meningitis, abscesses, and cranial neuropathies.

Findings:

  • Cases detailed include radiation-induced tympanic ring necrosis, progression to mastoiditis with bony sequestration, and skull base destruction leading to multiple cranial neuropathies.
  • Treatment strategies vary based on severity, ranging from antibiotics and wound care to extensive debridement and reconstructive surgery.

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Implications:

  • Early recognition and management are crucial for mitigating severe complications of temporal bone ORN.
  • Understanding the progressive nature of ORN informs treatment planning and patient monitoring.
  • Further research may explore optimal therapeutic interventions beyond current standards, including the limited benefit of hyperbaric oxygen therapy.