Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest is compared to previous exam from ___ . Compared to prior , there has been no significant interval change . Dense retrocardiac opacity is again seen silhouetting of the hemidiaphragm . The right lung remains grossly clear . Mild pulmonary vascular congestion is unchanged . Cardiac silhouette is enlarged , but stable and notable for a prosthetic device .
    OUTPUT:
    
No significant interval change since ___ noting left basilar opacity due to combination of pleural effusion with underlying atelectasis and possible consolidation .