Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . There is minimal atelectasis at the lung bases . No pleural effusion , focal consolidation or pneumothorax is visualized . No acute osseous abnormalities are seen .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .