Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are low . This accentuates the size of the cardiac silhouette which is normal . The mediastinal and hilar contours are within normal limits . There is crowding of the bronchovascular structures of mild atelectasis at the lung bases . No focal consolidation , pleural effusion or pneumothorax or pneumothorax is present . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .