Cystic lung disease
Lung cysts are defined as radiolucent areas with a wall thickness of less than 4mm. 
Cystic lung diseases as listed in the table on the left.
Cavities are defined as radiolucent areas with a wall thickness of more than 4mm and are seen in infection (TB, Staph, fungal, hydatid), septic emboli, squamous cell carcinoma and Wegener's disease. #Diagnosis #Radiology #Pulmonary #Cystic #Lung #CysticLungDisease #Differential #RadiologyAssistant