Micronodules are very small round areas of tissue in the lungs that show up on a CT scan as a white spot or shadow and can be an early sign of lung cancer.

Today, the International Association for the Study of Lung Cancer (IASLC), Guardant Health, the Global Lung Cancer Coalition (GLCC) and AstraZeneca announced the Lung Ambition Alliance, a new partnership with a bold ambition to eliminate lung cancer as a cause of death. 

Early detection and treatment through screening with low-dose computed tomography (LDCT) has been investigated as a potential means of reducing lung cancer deaths for more than two decades. In 2011, a large U.S. study, the randomized National Lung Screening Trial (NLST), reported a significant 20% reduction in lung cancer mortality in high-risk current and former smokers screened annually for three years with LDCT as compared to chest x-rays.