Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: lung volumes are slightly low and there is volume loss at the bases . in addition to that there is an alveolar infiltrate involving the left lower lobe that is worsened compared to the study from the prior day . there is pulmonary vascular redistribution the heart is moderately enlarged
    OUTPUT:
    
Increased infiltrate in the left lower lobe