Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . There are mild bibasilar opacities suggestive of atelectasis , left greater than right . Increased opacity at the right lung base could also relate to supervening early infection . There is no pulmonary edema .
    OUTPUT:
    
Increased right basal lung opacity may be due to atelectasis , but follow up CXR may be helpful to exclude early infection .