Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , PA and lateral . The appearance of the heart and lungs is essentially unchanged from the prior study . Lung volumes are again low , and there is atelectasis at the right base . A prominent epicardial fat pad causes a hazy opacity at the left lower lung . There is no focal consolidation . Heart size normal .
    OUTPUT:
    
1 . No definitive evidence of infection . 2 . Low lung volumes with bibasilar atelectasis .