Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left Port - A - Cath terminates in the proximal right atrium . The lungs are well expanded and clear . Cardiomediastinal silhouette is moderately enlarged . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
No acute cardiopulmonary process . Moderate cardiomegaly .