Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac silhouette is enlarged which may be due to cardiomyopathy given patient history more likely than pericardial effusion . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The aorta is calcified . No overt pulmonary edema . Some degenerative changes are seen along the spine .
    OUTPUT:
    
1 . No radiographic evidence of pneumonia . 2 . Enlarged cardiac silhouette presumed from cardiomyopathy given patient 's history , less likely pericardial effusion .