Anatomy CXR, cross-sectional, lymph nodes DDx Differential diagnosis Airway Airway disease Nodules Solitary & multiple nodules Neoplasm Lung cancer, carcinoid, lymphoma Smoking Smoking-related lung disease ILD Interstitial lung disease Cysts Cystic lung disease Inflammatory Infection & inflammation Vascular Pulmonary vascular disease Cardiac Cardiac radiology Other Miscellaneous chest