Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right central venous line tip is in the inferior right atrium , similar to prior . Pulmonary vascular congestion is mild and improved since prior . There is mild bibasilar atelectasis , slightly improved since prior . There is no focal consolidation , effusion , or pneumothorax . Cardiomegaly is mild . Sternal wires are intact . Mediastinal surgical clips appear similar to prior . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Bibasilar atelectasis and pulmonary vascular congestion are mild and slightly improved since prior . Other findings are similar to prior .