Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Asymmetric density is again demonstrated at the right lung base . The heart and mediastinal structures are unchanged . An endotracheal tube is been inserted and terminates at the thoracic inlet . A nasogastric tube is been placed and terminates in the region of the stomach .
    OUTPUT:
    
Persistent right basilar opacity . Endotracheal tube and nasogastric tube placed in satisfactory position .