Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is mildly enlarged . Median sternotomy wires are again noted . There is mild pulmonary vascular congestion . No overt pulmonary edema noted . No focal consolidations concerning for pneumonia identified . No pleural effusion or pneumothorax seen .
    OUTPUT:
    
Mild pulmonary vascular congestion and mild cardiomegaly . No focal consolidation concerning for pneumonia .