There are often chances of incidental respiratory disease-related findings, including emphysema and reticular opacities, observed even on low-dose CT lung cancer screenings and it is quite common at hospitals. A recent research conducted by Dr Paul F. Pinsky, chief of the Early Detection Research Group in the Division of Cancer Prevention at the National Cancer Institute, and colleagues, found that while these incidental findings could be beneficial in detecting the conditions early, they could more often increase health care costs due to unnecessary workups and possibly lead to even complications in some cases.The researchers analysed data from participants in the National Lung Screening Trial to find that 0.7 percent of adults had emphysema on low-dose CT compared with 44.2 percent of adults at any other screening.