"Studies have shown that the estimated cumulative risk for malignant brain tumours is 0.5-2.7% at 15 years post-radiation therapy. 75% of all radiation-induced gliomas are glioblastomas and 25% are lower grade astrocytomas 3."
Expected headings
"Criteria"
"There are no specific imaging features of the tumours themselves that differ radiation-induced from the sporadic gliomas. Please refer to the dedicated articles in the different types of gliomas for further details."