Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged and there is mild pulmonary vascular redistribution . There is increased opacity at both bases likely due to volume loss although no early infiltrate ca n't be excluded . Compared to the prior study the volume loss at the bases is increased
    OUTPUT:
    
Volume loss at the bases . An underlying infectious infiltrate can not be excluded