Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient remains intubated . The endotracheal tube terminates about 5 - 6 cm above the carina . An orogastric tube courses into the stomach , it s distal course not fully imaged . A right internal jugular catheter terminates at the cavoatrial junction . There is a new focal opacity in the left upper lobe with a geometric appearance , probably compatible with atelectasis ; a newly forming area of pneumonia is not excluded , however . Dense extensive retrocardiac opacification with air bronchograms and a probable associated pleural effusion persists without clear change . A pleural effusion is not apparent on the right on this study , which may be due to a true decrease or consequence of differences in positioning .
    OUTPUT:
    
New left upper lobe opacity , probably due to atelectasis , but a new focus of infection is not excluded ; short - term follow - up radiographs may be helpful to help distinguish if clinical concerns may include the possibility of developing infection . Persistent extensive retrocardiac opacification , most commonly due to atelectasis , with a pleural effusion .