Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate minimal left lower lobe atelectasis or scarring . The lungs are clear of opacities concerning for infection . Cardiomediastinal silhouette and hilar contours are unremarkable . No current pleural effusion . Old right eighth rib deformity is noted posteriorly .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .