Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation , effusion , or overt pulmonary edema . Moderate to severe enlargement of the cardiac silhouette is similar compared to recent exam . Atherosclerotic calcifications again noted at the aortic arch . No acute osseous abnormalities .
    OUTPUT:
    
Cardiomegaly without definite superimposed acute cardiopulmonary process .