Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right central venous catheter tip extends to the cavoatrial junction . There is no focal consolidation , pleural effusion or pneumothorax identified . An opacity in the peripheral right lower lung zone may reflect material external to the patient . The size the cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
No radiographic evidence of acute cardiopulmonary disease . An opacity overlying the peripheral right lower lung zone may reflect material external to the patient however if there is persisting clinical concern for a parenchymal process , a repeat radiograph could be considered .