Common medical test linked to 5% of cancers, study suggests: ‘Use them wisely’

CT scans, or CAT scans, are widely used to get internal images of the body and diagnose dangerous medical conditions — but they could pose a hidden risk.

A new study from the University of California - San Francisco found that CT (computed tomography) scans could be responsible for 5% of all cancer diagnoses each year, according to a press release.

"While some uncertainty exists, it doesn’t significantly affect the core conclusion: A small but meaningful percentage of cancers are linked to CT scans...