Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and well aerated lungs without focal consolidation , pleural effusion , or pneumothorax . There may be mild left base atelectasis . No radiopaque foreign body is visualized .
    OUTPUT:
    
No acute cardiopulmonary process . No radiopaque foreign body visualized .