Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are symmetrically well expanded and well aerated without focal consolidation , pleural effusion , or pneumothorax . The pulmonary vasculature is not engorged , and there is no overt pulmonary edema . An ill - defined opacity projecting over the left lateral lung base is unchanged from ___ and may represent focal scarring . The cardiomediastinal and hilar contours are within normal limits . Multilevel hypertrophic changes of the thoracic spine are noted .
    OUTPUT:
    
No acute cardiopulmonary process .