Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate a heart which is mildly enlarged . There are calcifications of the tortuous thoracic aorta . The lungs are well aerated and without focal consolidation or pneumothorax . There may be a trace effusion on the left side only .
    OUTPUT:
    
No acute cardiopulmonary process .