Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were performed . A left - sided pacemaker is noted with leads terminating in the right atrium and right ventricle . Left humeral orthopedic hardware is partially imaged . There is no pleural effusion , pneumothorax or focal airspace consolidation . The cardiac silhouette remains moderately enlarged , similar to ___ . There is unchanged mild pulmonary edema from the most recent study . Aortic arch calcifications are re-demonstrated and the pulmonary arteries are enlarged . Multilevel degenerative changes of the thoracic spine are noted .
    OUTPUT:
    
Unchanged mild pulmonary edema and moderate cardiomegaly .