Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are decreased compared to the prior study . This accentuates the size of the cardiac silhouette which is likely within normal limits . Mediastinal and hilar contours are unremarkable . There is crowding of the bronchovascular structures . Minimal bibasilar atelectasis is noted , but no focal consolidation , pleural effusion or pneumothorax is seen . No acute osseous abnormalities detected .
    OUTPUT:
    
Low lung volumes without focal consolidation to suggest pneumonia . No displaced fractures are seen , though if there is continued concern for rib fracture , then a dedicated rib series is recommended .