Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Battery pack overlies the left hemi thorax . No focal consolidation is seen . There is no pleural effusion or pneumothorax . Cardiac silhouette is top - normal in size . Mediastinal contours are grossly unremarkable . Multiple old right - sided rib fractures are seen .
    OUTPUT:
    
No acute cardiopulmonary process .