management strategies of pulmonary ground galss nodule pulmonary ground glass nodule ggn is a term of radiological manifestation which may be malignant or benign the management for pulmonary ggn remains controversial both fleischner society and national comprehensive cancer network nccn panel updated the guideline for the management of ggn in 2017 compared with previous versions the indication for surgery or biopsy is stricter and the recommended followup interval is prolonged in clinical practice the size of ggn component the size of consolidation component dynamic change during followup and computed tomography ct value are the four factors that help surgeons to decide the timing of surgery there are some misunderstandings for the management of ggn such as the administration of antibiotics the use of positron emission tomographycomputed tomography petct pure ggn adjacent to visceral pleura and ggn with penetrating vessel in conclusion ggn is a kind of slowly growing lesion which can be followed up safely