Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is marked enlargement of the cardiac silhouette , unchanged . A left chest wall dual lead AICD is present . No focal consolidation , pleural effusion or pneumothorax identified . Mild pulmonary vascular congestion without evidence of pulmonary edema .
    OUTPUT:
    
Mild pulmonary vascular congestion without evidence of overt pulmonary edema .