Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is moderately enlarged . The aorta is calcified . Patient is status post median sternotomy . Triple lead left - sided pacer device , AICD is stable in position . Pulmonary edema has improved in the interval . Patchy medial right base opacity on the frontal view is not substantiated on the lateral view and may relate to overlap of vascular structures with possible atelectasis . No pleural effusion is seen . There is no pneumothorax .
    OUTPUT:
    
Cardiac silhouette is moderately enlarged . The aorta is calcified . Patient is status post median sternotomy . Triple lead left - sided pacer device , AICD is stable in position . Pulmonary edema has improved in the interval . Patchy medial right base opacity on the frontal view is not substantiated on the lateral view and may relate to overlap of vascular structures with possible atelectasis . No pleural effusion is seen . There is no pneumothorax .