Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . There is no focal consolidation , effusion , or edema . Cardiac silhouette is enlarged but stable given differences in inspiratory effort . Atherosclerotic calcifications seen at the aortic arch . No acute osseous abnormalities .
    OUTPUT:
    
Cardiomegaly without acute cardiopulmonary process . No focal consolidation .