Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are decreased , with resultant crowding of bronchovascular structures at the lung bases . Bibasilar patchy opacities are present in appears somewhat more confluent in the right lower lobe on the lateral view . The cardiomediastinal and hilar contours are within normal limits . There is no pneumothorax .
    OUTPUT:
    
Bibasilar opacities , which may reflect atelectasis , aspiration , or infectious pneumonia . Short - term followup radiographs may be helpful in this regard .