Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is moderately enlarged . The aorta is tortuous and diffusely calcified . Streaky bibasilar airspace opacities likely reflect atelectasis . There is no pulmonary edema . No pneumothorax or large pleural effusion is present . There are no acute osseous abnormalities . Clips are seen within the upper abdomen .
    OUTPUT:
    
Bibasilar airspace opacities likely reflect atelectasis .