Radiation from imaging could lead to lung, breast and other future cancers, with a 10-fold increased risk for babies. By Elizabeth Fernandez Computed tomography (CT) scans may account for 5% of all cancers annually, according to a new study out of UC San Francisco that cautions against overusing and overdosing CTs. The danger is greatest for infants, followed by children and adolescents. But adults also are at risk, since they are the most likely to get scans. Nearly 103,000 cancers are predicte...