Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear . The cardiomediastinal silhouette is again moderately enlarged . Battery pack with pacemaker leads terminate in appropriate position . No pleural effusions or pneumothoraces .
    OUTPUT:
    
No acute cardiopulmonary process . These findings were discussed with Dr . ___ ___ telephone at 9 : 54 a .m . by Dr . ___ on the day of the study .