Snapshot A 23-year-old man with a past medical history of depression presents to his primary care physician for increasing shortness of breath. He reports that this occurs especially when he exercises. His family history is pertinent for lung disease in multiple family members, but he is not sure which lung disease. He reports that when he smokes socially, the shortness of breath becomes acutely worse. A chest radiograph shows a flattened diaphragm, and laboratory evaluation reveals increased lever enzymes. He is sent to the genetic counselor for genetic testing. Introduction Clinical definition login to view 3 more bullets Epidemiology login to view 6 more bullets Pathogenesis login to view 6 more bullets Genetics login to view 2 more bullets Presentation Symptoms login to view 10 more bullets Imaging Chest radiograph login to view 2 more bullets Computed tomography of chest login to view 2 more bullets Studies Serum labs login to view 5 more bullets Invasive studies login to view 3 more bullets Diagnostic criteria login to view 1 more bullet Differential Asthma login to view 2 more bullets Autoimmune hepatitis login to view 2 more bullets Treatment Lifestyle login to view 1 more bullet Medical login to view 7 more bullets Surgical login to view 6 more bullets Complications Hepatocellular carcinoma login to view 3 more bullets