Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube ends 4 .5 cm above the carina . A NG tube ends in the stomach . Right IJ ends at the cavoatrial junction . There is no pneumothorax . There is a small left pleural effusion and left basilar atelectasis . There is only mild vascular congestion . There is a left retrocardiac opacity likely representing atelectasis .
    OUTPUT:
    
Appropriate position of lines and tubes . No pneumothorax . Left retrocardiac opacity likely representing atelectasis .