The Fleischner Society Guidelines for management of pulmonary nodules has been revised in 2017 based on new data and accumulated experience. The guidelines represent the consensus of the Fleischner Society which incorporates the opinions on the multidisciplinary international group of thoracic radiologists, pulmonologists, surgeons, pathologists, and other specialists. The guidelines apply to incidental pulmonary nodules with specific management recommendations based on a multiple of factors including the nodule type, multiplicity, size thresholds and clinical risk. A web based application (www.fleischnerapp.com)was developed to facilitate the dissemination and application of the latest Fleischner Society Guidelines for the management of pulmonary nodules.