Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . Lungs are hyperinflated . There is some flattening of the hemidiaphragms and increased retrosternal space . Bilateral parenchymal scarring , improved on the right . Calcified left apical granuloma was more obvious on the previous film , due to technique . There are areas of decreased lung markings , indicative of emphysema . The pulmonary vasculature is normal . No focal consolidation , pleural effusion , or pneumothorax is seen .
    OUTPUT:
    
Severe emphysema and overinflation . Scarring in both upper lobes , right more than left . Calcified granuloma in the left lung apex . No acute changes .