Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . The aorta is unfolded and diffusely calcified . The pulmonary vascularity is normal . Streaky bibasilar airspace opacities likely reflect atelectasis . There is no focal consolidation , pleural effusion or pneumothorax . No acute osseous abnormalities are seen . Linear 1 .8 cm radiopaque density projecting over the left upper abdomen may reflect ingested contents .
    OUTPUT:
    
Mild bibasilar atelectasis . No focal consolidation suggestive of pneumonia .