Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . Heart size is normal . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Streaky opacities in both lung bases likely reflect areas of atelectasis . Linear scarring is noted within the right mid lung field compatible with prior wedge resections within the right upper and lower lobes . There is no focal consolidation , pleural effusion or pneumothorax . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Slightly low lung volumes with mild bibasilar atelectasis .