Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Linear opacities at the lung bases are most suggestive of atelectasis or scarring given persistence . The lungs are clear of focal consolidation , effusion or pulmonary vascular congestion . The cardiomediastinal silhouette is normal . No acute osseous abnormalities identified .
    OUTPUT:
    
No acute cardiopulmonary process .