Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . This accentuates the size of the cardiac silhouette which is mildly enlarged . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is not engorged . Minimal patchy opacities are seen at the lung bases . No pleural effusion , focal consolidation or pneumothorax is identified . No acute osseous abnormalities visualized .
    OUTPUT:
    
Low lung volumes with minimal patchy opacities in the lung bases , likely atelectasis .