Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter tip terminates in the mid SVC . The patient is status post median sternotomy . Mild to moderate enlargement of the cardiac silhouette is unchanged . The mediastinal contour is similar . There is mild pulmonary vascular congestion , unchanged . Focal consolidation in the right upper lobe is concerning for pneumonia . Persistent bibasilar opacities and may reflect atelectasis or additional sites of infection . Small left pleural effusion is unchanged . No pneumothorax is detected .
    OUTPUT:
    
1 . Right upper lobe pneumonia . 2 . Persistent bibasilar airspace opacities which may reflect atelectasis but infection can not be excluded . Small left pleural effusion unchanged . 3 . Mild pulmonary vascular congestion , similar to the previous study .