Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no pneumothorax or pleural effusion . No focal consolidation is seen to suggest pneumonia . Haziness in the left lung base is likely scarring and chronic lung disease . Deformities of the left rib cage likely related to old rib fractures . Heart size is enlarged . Calcifications within the aortic arch are noted .
    OUTPUT:
    
No acute cardiopulmonary process .