Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Unchanged positioning of the right internal jugular line tip at the mid SVC . Compared to the prior study , interval enlargement of the cardiac silhouette is new , along with a new pericardial effusion . A new left lower lobe opacity is concerning for atelectasis or pneumonia . Small bilateral effusions are new since the prior study . No evidence of pneumothorax .
    OUTPUT:
    
1 . Enlargement of the cardiac silhouette is due to a new pericardial effusion . 2 . New left lower lobe opacity is concerning for atelectasis or pneumonia . 3 . Small bilateral effusions are new .