Head CT does not increase the risk for meningioma

A paper by Nordenskjold et al published in Radiology found that exposure to radiation from computed tomography of the head does not increase the risk of developing a meningioma.

The authors collected data from a cohort of 26 370 subjects from a radiology archive of CT examinations of the head performed from 1973 through 1992. For comparison, an age- and sex-matched cohort of 96 940 subjects who were not exposed to CT (unexposed cohort) was gathered.

Comparison of exposed and unexposed cohorts no statistically significant increase in the risk of meningioma was found among patients who were exposed to ionizing radiation from CT of the head compared to the unexposed control individuals.