Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ central line terminates in mid to lower SVC . Sternotomy wires intact and aligned . The ET tube ends just below the clavicles . Left - sided AICD in place . There is no pneumothorax . Stable retrocardiac airspace opacification may be due to atelectasis or infection . Moderate cardiomegaly despite the projection is stable . Old right rib fractures are unchanged .
    OUTPUT:
    
No appreciable interval change in retrocardiac airspace opacification , which may be due to atelectasis or infection . Stable moderate cardiomegaly .