Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously visualized right internal jugular central venous catheter has since been removed . Post - surgical changes are visualized with intact median sternotomy wires , surgical clips and coils . Calcifications are again noted at the aortic arch . In comparison to prior study from ___ , lung aeration has improved bilaterally . Mild atelectatic changes are again visualized at the left lung base . There is a small right pleural effusion , decreased in comparison to the prior study .
    OUTPUT:
    
Improved areation of the lungs in comparison to the prior study from ___ with a decrease in small right pleural effusion .