Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are opacities in both lower lungs , more extensive on the left than the right , which could represent atelectasis , pneumonia or potentially aspiration . The cardiomediastinal silhouette and hilar contours are unremarkable . The pleural surfaces are normal without effusion or pneumothorax . Verebroplasty changes are seen in the lower thoracic spine .
    OUTPUT:
    
Bibasilar opacities , greater on the left than right , could represent atelectasis , pneumonia or aspiration .