Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The inspiratory lung volumes are slightly decreased . Streaky opacities in the right lung base greater than the left are compatible with atelectasis . There is no focal consolidation concerning for pneumonia , pleural effusion or pneumothorax . The cardiomediastinal and hilar contours are within normal limits allowing for low lung volumes . No acute osseous abnormality is detected .
    OUTPUT:
    
Decreased lung volumes with bibasilar atelectasis .