Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours unchanged . Increased vascular congestion pulmonary edema bilaterally in the lower bases . There is no pneumothorax or pleural effusion . Tip of the intra-aortic balloon pump again seen less than 1 centimeter from the apex of the aortic knob and should be pulled back about 2 .4 cm .
    OUTPUT:
    
Progression of vascular congestion and pulmonary edema in bilateral lung bases . Intra-aortic balloon pump is positioned higher than the standard position and may be pulled back 2 .4 cm