Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No pneumomediastinum is appreciated on this single view . Lung volumes are low . Left lower lung consolidation with air bronchograms is concerning for pneumonia , as seen on recent prior CT . No pneumothorax is seen on this study . Aortic knob calcifications are noted .
    OUTPUT:
    
1 . Pneumomediastinum is not appreciated radiographically . 2 . Left lower lung consolidation . These findings were discussed with Dr . ___ by Dr . ___ in person at approximately 8 :00 a .m . on ___ .