Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation , effusion , or edema . Cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted in the thoracic aorta . Median sternotomy wires and mediastinal clips are noted . Degenerative changes noted at the shoulders .
    OUTPUT:
    
No acute cardiopulmonary process .