Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . The patient is intubated and the endotracheal tube tip resides 3 .4 cm above the carina . Endogastric tube extends into the left upper abdomen though the tip is excluded from view . There is retrocardiac opacity which could represent atelectasis / aspiration , difficult to exclude pneumonia . Otherwise lungs are clear .
    OUTPUT:
    
Appropriate tube position .