Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac silhouette remains enlarged , with a globular appearance , which may be due to pericardial effusion and underlying cardiomyopathy . There is minimal blunting of the costophrenic angles which may be due to trace pleural effusion . No focal consolidation or pneumothorax is seen . The aortic knob is calcified . There is no overt pulmonary edema . Multiple old right - sided rib fractures are again seen .
    OUTPUT:
    
Enlarged cardiac silhouette with globular appearance , as also on the prior study , could be due to pericardial effusion or underlying cardiomyopathy . Blunting of the bilateral costophrenic angles may be due to trace bilateral pleural effusions .