Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes , which results in bronchovascular crowding . Bibasilar opacities , which are more conspicuous on the frontal view , likely reflect atelectasis , however aspiration or early pneumonia could be considered in the appropriate clinical setting . The heart is mildly enlarged . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Bibasilar opacities , which are more conspicuous on the frontal view , likely reflect atelectasis , however aspiration or early pneumonia could be considered in the appropriate clinical setting .