Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . The anterior eventration of the right hemidiaphragm is seen . Bibasilar opacities are seen which could be due to atelectasis and / or pneumonia . No large pleural effusion is seen but trace pleural effusion is difficult to exclude . The aorta is tortuous . The cardiac silhouette is unremarkable . No overt pulmonary edema is seen .
    OUTPUT:
    
Bibasilar opacities could be due to atelectasis and / or pneumonia in appropriate clinical setting . .