Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval enlargement of the cardiac silhouette size which is now moderate to severely enlarged . The configuration of the cardiac silhouette is somewhat globular , and a pericardial effusion is not excluded . Aortic calcifications are again demonstrated . The mediastinal contours are unchanged . There is perihilar haziness and vascular indistinctness which is more pronounced compared to the prior study compatible with mild pulmonary edema . More focal patchy opacity within the right lung base is noted and an underlying infectious process in this region is not completely excluded . The lungs are hyperinflated with relative lucency of the lung apices compatible with emphysema . No definite pleural effusion is noted . There is no pneumothorax . Clips are noted in the right upper quadrant the abdomen compatible with prior cholecystectomy .
    OUTPUT:
    
Worsening congestive heart failure , mild to moderate in extent . Globular configuration of the cardiac silhouette raises the possibility of underlying pericardial effusion . More focal opacity in the right lung base likely is related to the patient 's pulmonary edema , though underlying infection is not excluded .