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[Radiation-induced intracranial meningiomas]
Abstract:
Based on the analysis of 112 cases a clinical characterization has been done of intracranial meningiomas developed secondary to X-ray irradiation of the head for fungus disease of skull integuments. X-ray irradiation increases the risk of intracranial meningioma development up to 4-fold. Radiation-induced intracranial meningiomas are characterized by particular features of clinical manifestations, by preponderance of hyperdense forms, by being of large size, as well as by a high frequency of changes in the adjacent bone presenting as hyperostosis, usuration, and destruction. The above meningiomas are notable for a high specific weight of anaplastic varieties.
Insights
X-ray irradiation of the head significantly increases the risk of developing intracranial meningiomas, which exhibit distinct clinical and radiological features. These radiation-induced tumors often present as large, hyperdense masses with bone changes and a higher rate of anaplastic varieties.
Area of Science:
- Neurology
- Oncology
- Radiology
Context:
- Intracranial meningiomas can develop secondary to medical treatments.
- Previous head irradiation for fungal infections is a known risk factor.
Purpose:
- To clinically characterize intracranial meningiomas that arise after head X-ray irradiation.
- To identify specific features distinguishing radiation-induced meningiomas.
Summary:
- Analysis of 112 cases revealed that X-ray irradiation increases intracranial meningioma risk up to 4-fold.
- Radiation-induced meningiomas commonly present as large, hyperdense tumors with associated bone changes (hyperostosis, usuration, destruction).
- These tumors show a higher incidence of anaplastic (malignant) forms.
Impact:
- Highlights the long-term risks associated with cranial radiation therapy.
- Informs clinical suspicion and diagnostic approaches for patients with a history of head irradiation.
- Emphasizes the need for vigilant follow-up in irradiated populations to detect secondary neoplasms early.