"It has potential harms as well, and it's really important to balance them." Scientists long ago established that ionizing radiation emitted by computed tomography, or CT, scans increases cancer risk.

Nearly seventeen months after an operation to remove an aggressive tumor ... he said. CT officials issue urgent plea for help stopping ‘a plague’ in state waterways. Here’s why and how.

The authors took an estimate of the number of CT scans done every year in the U.S., based on research from ... having a surgeon simply guess where the tumor is located. No serious medical ...