Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A catheter is seen overlying the cardiac apex . The cardiac silhouette is enlarged , increased since ___ . A dense left retrocardiac opacity may represent a combination of atelectasis and a pericardial effusion . Opacity in the right lower lobe is unchanged since at least ___ and most consistent with atelectasis and overlying soft tissues . A small left pleural effusion is new since ___ . No pneumothorax is identified .
    OUTPUT:
    
1 . Enlarged cardiac silhouette , slightly increased since ___ , compatible with a pericardial effusion . Although a catheter is seen overlying the cardiac apex , correlation with catheter output and consideration of an echocardiogram are recommended . 2 . New small left pleural effusion .