Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath terminates in the proximal right atrium without evidence of pneumothorax . Patient is status post median sternotomy and cardiac valve replacement . Minimal left base atelectasis / scarring is seen . No focal consolidation is seen . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
No acute cardiopulmonary process .