Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , with bibasilar atelectasis , accentuating the heart size and crowding the pulmonary vasculature . There is an apparent left pleural effusion . The heart is top - normal in size . There is no pneumothorax or overt pulmonary edema . Moderate gaseous distension of the stomach is noted .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis and left pleural effusion . Underlying infection can not be excluded in the appropriate clinical setting .