Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , portable . The lungs are clear . The mediastinum and heart are enlarged , a chronic finding . There is no pneumothorax or pleural effusion . Compared to the prior study there is minimal pulmonary vascular congestion , most evident at the lung bases . The right PICC terminates at the cavoatrial junction . There are intact median sternotomy cerclage wires and bands .
    OUTPUT:
    
Minimal pulmonary vascular congestion and chronic cardiomegaly .