Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is an intra-aortic balloon pump , the tip is 1 .5 cm below the top of the aortic arch . The cardiomediastinal contour is unchanged . Persistent prominence of bilateral hila consistent with pulmonary vascular congestion . No overt pulmonary edema . No pneumothorax seen .
    OUTPUT:
    
No significant interval change when compared to the prior study .