Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear besides mild left basilar atelectasis . There is no consolidation , effusion , or edema . There is moderate to severe cardiomegaly . Atherosclerotic calcifications noted at the aortic arch . Right chest wall single lead pacing device is seen with lead tip in the right ventricle . No acute osseous abnormalities .
    OUTPUT:
    
Cardiomegaly without superimposed acute cardiopulmonary process .