Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . The lungs remain clear of focal consolidation or effusion . Cardiomediastinal silhouette is unchanged , noting a tortuous aorta . Osseous and soft tissue structures are unchanged and notable for old left lateral rib fracture .
    OUTPUT:
    
No acute cardiopulmonary process .