Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is top normal . Mediastinal and hilar contours are grossly unremarkable . Pulmonary vasculature is not engorged . Minimal atelectasis is noted in the lung bases without focal consolidation . No large pleural effusion or pneumothorax is present . No acute osseous abnormality is visualized .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .