[Radiation-induced intracranial meningiomas].

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.