Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube ends approximately 4 cm from the carina . The lungs are clear without consolidation or edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal and unchanged . No rib fractures are visualized .
    OUTPUT:
    
1 . Endotracheal tube approximately 4 cm from the carina . 2 . No pneumothorax .