Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Dual - lead left - sided pacemaker is again seen with leads extending to the expected positions of the right atrium and right ventricle . There is persistent elevation of the right hemidiaphragm . Minimal right base atelectasis / scarring is seen . The patient is status post median sternotomy and CABG . No pleural effusion is seen . There is no evidence of pneumothorax . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous . Very minimal interstitial edema is seen .
    OUTPUT:
    
Elevation of the right hemidiaphragm and mild right lung atelectasis . Minimal interstitial edema . Mild cardiomegaly . No pleural effusions .