Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Right chest wall pacing device is seen with lead tips in unchanged position . The lungs are clear without consolidation , effusion , or overt pulmonary edema . The cardiac silhouette is enlarged , but stable in configuration . Atherosclerotic calcification noted at the aortic arch , the descending thoracic aorta is tortuous . No acute osseous abnormality is identified .
    OUTPUT:
    
Cardiomegaly without superimposed acute cardiopulmonary process .