Brain tumor found during preventive scan puts full-body MRIs back in the spotlight

After a former "Bachelor" contestant said a preventive scan uncovered a brain tumor before symptoms appeared, doctors are once again weighing the promise — and pitfalls — of full-body MRI screenings.

The renewed attention comes as celebrities including Kim Kardashian, Paris Hilton and now former "Bachelor" contestant Josh Seiter have publicly discussed preventive body scans, fueling consumer interest in the technology despite ongoing debate among medical experts about its benefits for healthy people.