Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomegaly is a stable . Pacer leads are in standard position . Bibasilar opacities are grossly unchanged : A combination of effusion and atelectasis , superimposed infection could be present in the appropriate clinical setting . There is no pneumothorax . There are low lung volumes . . Mild vascular congestion has improved .
    OUTPUT:
    
Improved vascular congestion Bibasilar opacities a combination of effusions and adjacent consolidations , this consolidation could represent atelectasis or pneumonia in the appropriate clinical setting