Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate cardiomegaly is re - demonstrated with diffuse atherosclerotic calcifications of the thoracic aorta noted . Mediastinal and hilar contours are otherwise unchanged . Pulmonary vasculature is not engorged . Lung volumes are low with mild patchy opacities in the lung bases , likely atelectasis . No pleural effusion or pneumothorax is present . Two clips are seen projecting over the left lung apex as well as epigastric region .
    OUTPUT:
    
Low lung volumes with patchy bibasilar opacities , likely atelectasis .