Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , resulting in bronchovascular crowding . Faint bibasilar opacities likely reflect atelectasis , however it is difficult to exclude aspiration or superimposed infection . The heart is not enlarged . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Bibasilar opacities are likely consistent with atelectasis , however pneumonia or aspiration could be considered in the appropriate clinical setting .