Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views are obtained . The cardiomediastinal silhouette is stable in the post-operative setting . The previously seen opacification in the right mid lung is improved since the prior study and likely reflects a pleural effusion with fluid collection along the oblique fissure . Median sternotomy wires and valve replacement are again seen , unchanged in position since the prior study . There is persistent haziness of the central pulmonary vasculature suggesting a component of congestion .
    OUTPUT:
    
Interval improvement in right mid lung opacity . Bilateral pleural effusions with some fluid along the oblique fissure . Stable cardiomediastinal silhouette in the post-operative period .