Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is enlarged and given differences in technique appears larger compared to prior . Although decrease in degree compared to prior , mild edema persists . There is no effusion or pneumothorax . No acute osseous abnormalities .
    OUTPUT:
    
Cardiomegaly . The cardiac silhouette has also likely increased since prior which raises possibility of superimposed pericardial effusion . Decreased degree of pulmonary edema compared to prior .