On high-resolution<unk>  (HRCT) scan of the chest alpha 1-antitrypsin<unk>  presents as hypoattenuated areas resulting from a lack of lung tissue. As tissue is lost, pulmonary vessels appear smaller, fewer in number, and spread farther apart. Mild forms of alpha1-antitrypsin disease can be missed on HRCT scanning. However, when the disease is moderate, there is  panlobular and characteristic lower zone predominance. Severe forms vary from severe centrilobular emphysema. Normal lung structures have been replaced by abnormal airspaces.<unk>  of abdomen may show hepatomegaly or changes associated with cirrhosis or hepatocellular carcinoma.
Alpha 1-antitrypsin deficiency CT
Alpha 1-antitrypsin deficiency MRI
Asthma CT
Chronic bronchitis CT
Idiopathic pulmonary fibrosis CT
Hypersensitivity pneumonitis CT
Bronchiectasis CT
Bronchiolitis CT scan