Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild cardiomegaly . Calcification in the aortic knob and unfolding of the thoracic aorta is noted . There is no pleural effusion or pneumothorax . The lungs are hyperexpanded but clear without focal consolidation . Pulmonary vascularity is within normal limits . Surgical clips in the right axilla and chest wall are likely the sequela of axillary lymph node dissection and right mastectomy .
    OUTPUT:
    
No acute cardiopulmonary process .