Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Biapical left greater than right scarring is identified . The lungs are clear of consolidation or pneumothorax . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcification is seen at the aortic arch . No acute osseous abnormality is identified .
    OUTPUT:
    
No definite acute cardiopulmonary process .