Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette is present . The aorta is mildly unfolded . Mediastinal and hilar contours are otherwise unremarkable . The pulmonary vasculature is not engorged . Patchy opacities in the lung bases likely reflect areas of atelectasis . No focal consolidation or pleural effusion is demonstrated . Mild degenerative changes are noted involving the right glenohumeral joint .
    OUTPUT:
    
Mild bibasilar atelectasis . No focal consolidation to suggest pneumonia .