Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes consistent with poor inspiratory effort . There is resolution of the bilateral opacities when compared to previous chest radiographs . There is no focal consolidation , pneumothorax or pleural effusion noted . Heart size continues to be severely enlarged with no pulmonary edema noted . Differential includes cardiomyopathy and pericardial effusion . The mediastinal silhouette contours are normal . There is callus formation of the left clavicular fracture with no displacement when compared with previous chest radiograph .
    OUTPUT:
    
Resolution of the bilateral opacities with continued severe enlargement of the cardiac silhouette . Differential includes cardiomyopathy and pericardial effusion .