Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate well - expanded lungs . Cardiomediastinal silhouette is within normal limits . Heart is normal in size . Lungs are clear without focal consolidation . There is no pleural effusion and no pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary abnormality .