Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left Port - A - Cath is unchanged in position with tip projecting over the cavoatrial junction . Cardiomediastinal silhouette and hilar contours are normal . Lungs are clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process ; specifically , no evidence of pneumonia .