Infection Inflammation Malignancy Mechanical/Atelectasis Trauma Metabolic Circulatory- Hemorrhage Immune Infiltrative Idiopathic Iatrogenic Idiopathic
Small Lung

69 year female atrophied right lung secondary to chronic infection and resulting in cystic bronchiectasis (aka saccular bronchiectasis)
The axial images show a totally collapsed right lung with leftward mediastinal shift and hyperinflation of the right lung. The airways of the left lung are large and patent allowing for a 3Dreconstruction of the airways and confirming the diagnosis of saccular bronchiectasis
Ashley Davidoff MD TheCommonvein.net