Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no focal consolidation , effusion , or edema . There is mild cardiac enlargement and tortuosity of the thoracic aorta with calcifications at the arch . No acute osseous abnormalities .
    OUTPUT:
    
Mild cardiomegaly without superimposed acute cardiopulmonary process .