Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP chest radiograph . There is no focal consolidation , pleural effusion , or pneumothorax . Retrocardiac atelectasis is unchanged . There are no overt signs of edema . There is no pleural effusion or pneumothorax . Aside from atherosclerotic calcifications in the arch , the cardiomediastinal silhouette is normal .
    OUTPUT:
    
No acute cardiopulmonary process .