Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . The heart size remains top normal in size . The mediastinal and hilar contours are stable . Pulmonary vascularity is normal . There is minimal bibasilar atelectasis , but no focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis , but no acute cardiopulmonary abnormality otherwise noted .