Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip in the upper thoracic trachea approximately 6 cm above the carina . Nasoenteric tube with side port at the GE junction . No evidence of pneumothorax . Dense retrocardiac opacity , concerning for pneumonia . No large pleural effusion . Cardiomediastinal silhouette is normal .
    OUTPUT:
    
1 . Endotracheal tube approximately 6 cm above the carina . 2 . Dense retrocardiac opacity concerning for pneumonia versus aspiration . 3 . Nasogastric tube side port at the GE junction , can be advanced for more appropriate positioning .