Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The intraaortic balloon pump is approximately 1 .4 cm from the top of the aortic arch . The enteric tube and endotracheal tubes are unchanged in position . There has been interval improvement in bilateral alveolar opacities with an increase in the right pleural effuison . The heart size , hilar and mediastinal contours are unchanged .
    OUTPUT:
    
Intraaortic balloon pump is 1 .4 cm from the tip of the aortic arch , and there has been interval improvement in bilateral alveolar opacities with further development of a right pleural effusion .