Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . Faint opacities project over the lung bases bilaterally likely related to anterior right fifth and sixth and left fifth rib fractures with callus formation . Elsewhere , the lungs are clear . There is no effusion . The cardiomediastinal silhouette is stable . Atherosclerotic calcifications are again noted at the aortic arch . Osseous and soft tissue structures are unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .