Unenhanced low-dose CT scans that are used to screen heavy smokers for lung cancer also can identify a substantial percentage of cases of early-stage chronic obstructive pulmonary disease, according to a report in the October 26 issue of JAMA.The results must still be validated in other cohorts, but "if CT scanning becomes widely adopted for lung cancer screening" it also could be used as a secondary test, outside of the primary and preferred method of screening with pulmonary function testing, to...