Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right pleural effusion with adjacent atelectasis is new since the prior radiograph but present and probably slightly decreased compared to the recent CTA . Opacities on CT concerning for infection are not conspicuous on radiograph exam today suggesting interval improvement . No left pleural effusion . Pulmonary nodule in the superior aspect of the right lower lobe persists and is better appreciated on the recent CTA , likely overall unchanged . The heart size is normal . The mediastinum and hila are within normal limits . Calcification of the aortic knob is unchanged . No pulmonary edema or pneumothorax .
    OUTPUT:
    
Interval decrease in small right pleural effusion and infection since ___ CTA .