Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are unchanged compared to the prior study . There is eventration of the right hemidiaphragm , similar in appearance when compared to the prior study . Atelectasis versus scarring at the bilateral lung bases . Even allowing for the projection , the heart appears enlarged . A dual lead pacemaker is in - situ . No pleural effusion , consolidation or pneumothorax seen .
    OUTPUT:
    
Mild to moderate cardiomegaly with at evidence of frank pulmonary edema .