"whole mouth dental radiographs (increased risk in examinations performed pre-1945 when doses were higher)"
"radiotherapy for tinea capitis"
"The exact incidence of radiation-induced meningiomas is unknown; one study had an incidence of 22% 1. There is an increasing incidence of developing meningiomas over time, unlike radiation-induced gliomas that have a stable/decreased incidence 5 years post-treatment 1. Radiation-induced meningiomas tend to occur in younger patients when compared to spontaneous meningiomas 3."
"The exact incidence of radiation-induced meningiomas is unknown; one study had an incidence of 22% 1. There is an increasing incidence of developing meningiomas over time, unlike radiation-induced gliomas that have a stable/decreased incidence 5 years post-treatment 1. Radiation-induced meningiomas tend to occur in younger patients when compared to spontaneous meningiomas 3."
"There is a long latency between radiation exposure and diagnosis of radiation-induced meningiomas, on average ~35 years. They are more likely to be multiple and have higher rates of recurrence than spontaneous meningiomas 2. Many of the recognised gene mutations in spontaneous meningiomas are also missing in radiation-induced meningiomas, supporting damage to DNA repair mechanisms in these tumours 4. While the majority are still grade 1 tumours, grade 2 rates are double that of spontaneous meningiomas, with faster rates of growth 4."
"Increased incidence of meningiomas has been documented in populations with radiation exposure that has come from therapeutic, diagnostic and environmental exposures 1,2:"