Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinum is again enlarged , however unchanged . No vascular congestion is noted . No airspace consolidations are seen . Bibasilar scarring is once again seen and stable . Bones are intact . The patient is status post median sternotomy with wires intact .
    OUTPUT:
    
Cardiomegaly , but no evidence of congestive heart failure at this time .