Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube terminates 7 .2 cm above the carina . A left IJ central venous catheter terminates at the mid SVC . The heart is mildly enlarged , unchanged from prior examinations . There is a persistent left retrocardiac opacity which remains stable , either reflecting atelectasis or underlying consolidation . Small left pleural effusion is unchanged . There is continued elevation of the right hemidiaphragm with adjacent compressive atelectasis .
    OUTPUT:
    
Unchanged persistent left retrocardiac opacity , which may reflect atelectasis or small consolidation . Small left pleural effusion . Persistent right elevated right hemidiaphragm with adjacent atelectasis .